diff --git a/DESCRIPTION b/DESCRIPTION
index 3e41bd2..ba72bbf 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -56,5 +56,5 @@
     sparkline
 VignetteBuilder: knitr
 Encoding: UTF-8
-RoxygenNote: 6.1.1
+RoxygenNote: 7.1.1
 Roxygen: list(markdown = TRUE)
diff --git a/NAMESPACE b/NAMESPACE
index 1cf9581..7c27526 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -11,6 +11,8 @@
 export(cell_spec)
 export(collapse_rows)
 export(column_spec)
+export(dummy_html_tbl)
+export(dummy_latex_tbl)
 export(footnote)
 export(footnote_marker_alphabet)
 export(footnote_marker_number)
@@ -27,6 +29,7 @@
 export(linebreak)
 export(magic_mirror)
 export(pack_rows)
+export(remove_column)
 export(rmd_format)
 export(row_spec)
 export(save_kable)
@@ -92,6 +95,7 @@
 importFrom(xml2,xml_child)
 importFrom(xml2,xml_children)
 importFrom(xml2,xml_has_attr)
+importFrom(xml2,xml_length)
 importFrom(xml2,xml_name)
 importFrom(xml2,xml_remove)
 importFrom(xml2,xml_text)
diff --git a/R/add_indent.R b/R/add_indent.R
index 25448b5..a50547d 100644
--- a/R/add_indent.R
+++ b/R/add_indent.R
@@ -3,13 +3,16 @@
 #' @param kable_input Output of `knitr::kable()` with `format` specified
 #' @param positions A vector of numeric row numbers for the rows that need to
 #' be indented.
+#' @param level_of_indent a numeric value for the indent level. Default is 1.
 #'
 #' @examples x <- knitr::kable(head(mtcars), "html")
 #' # Add indentations to the 2nd & 4th row
-#' add_indent(x, c(2, 4))
+#' add_indent(x, c(2, 4), level_of_indent = 1)
 #'
 #' @export
-add_indent <- function(kable_input, positions) {
+add_indent <- function(kable_input, positions,
+                       level_of_indent = 1, all_cols = FALSE) {
+
   if (!is.numeric(positions)) {
     stop("Positions can only take numeric row numbers (excluding header rows).")
   }
@@ -21,17 +24,19 @@
     return(kable_input)
   }
   if (kable_format == "html") {
-    return(add_indent_html(kable_input, positions))
+    return(add_indent_html(kable_input, positions, level_of_indent, all_cols))
   }
   if (kable_format == "latex") {
-    return(add_indent_latex(kable_input, positions))
+    return(add_indent_latex(kable_input, positions, level_of_indent, all_cols))
   }
 }
 
 # Add indentation for LaTeX
-add_indent_latex <- function(kable_input, positions) {
+add_indent_latex <- function(kable_input, positions,
+                             level_of_indent = 1, all_cols = FALSE) {
   table_info <- magic_mirror(kable_input)
   out <- solve_enc(kable_input)
+  level_of_indent<-as.numeric(level_of_indent)
 
   if (table_info$duplicated_rows) {
     dup_fx_out <- fix_duplicated_rows_latex(out, table_info)
@@ -48,25 +53,39 @@
 
   for (i in positions + table_info$position_offset) {
     rowtext <- table_info$contents[i]
+    if (all_cols) {
+      new_rowtext <- latex_row_cells(rowtext)
+      new_rowtext <- lapply(new_rowtext, function(x) {
+        paste0("\\\\hspace\\{", level_of_indent ,"em\\}", x)
+      })
+      new_rowtext <- paste(unlist(new_rowtext), collapse = " & ")
+    } else {
+      new_rowtext <- latex_indent_unit(rowtext, level_of_indent)
+    }
     out <- sub(paste0(rowtext, "\\\\\\\\"),
-               paste0(latex_indent_unit(rowtext), "\\\\\\\\"),
+               paste0(new_rowtext, "\\\\\\\\"),
                out, perl = TRUE)
-    table_info$contents[i] <- latex_indent_unit(rowtext)
+    table_info$contents[i] <- new_rowtext
   }
   out <- structure(out, format = "latex", class = "knitr_kable")
   attr(out, "kable_meta") <- table_info
   return(out)
+
+
 }
 
-latex_indent_unit <- function(rowtext) {
-  paste0("\\\\hspace\\{1em\\}", rowtext)
+latex_indent_unit <- function(rowtext, level_of_indent) {
+  paste0("\\\\hspace\\{", level_of_indent ,"em\\}", rowtext)
 }
 
+
+
 # Add indentation for HTML
-add_indent_html <- function(kable_input, positions) {
+add_indent_html <- function(kable_input, positions,
+                            level_of_indent = 1, all_cols = FALSE) {
   kable_attrs <- attributes(kable_input)
 
-  kable_xml <- read_kable_as_xml(kable_input)
+  kable_xml <- kable_as_xml(kable_input)
   kable_tbody <- xml_tpart(kable_xml, "tbody")
 
   group_header_rows <- attr(kable_input, "group_header_rows")
@@ -76,20 +95,29 @@
   }
 
   for (i in positions) {
-    node_to_edit <- xml_child(xml_children(kable_tbody)[[i]], 1)
-    if (!xml_has_attr(node_to_edit, "indentlevel")) {
-      xml_attr(node_to_edit, "style") <- paste(
-        xml_attr(node_to_edit, "style"), "padding-left: 2em;"
-      )
-      xml_attr(node_to_edit, "indentlevel") <- 1
+    row_to_edit = xml_children(kable_tbody)[[i]]
+    if (all_cols) {
+      target_cols = 1:xml2::xml_length(row_to_edit)
     } else {
-      indentLevel <- as.numeric(xml_attr(node_to_edit, "indentlevel"))
-      xml_attr(node_to_edit, "style") <- sub(
-        paste0("padding-left: ", indentLevel * 2, "em;"),
-        paste0("padding-left: ", (indentLevel + 1) * 2, "em;"),
-        xml_attr(node_to_edit, "style")
-      )
-      xml_attr(node_to_edit, "indentlevel") <- indentLevel + 1
+      target_cols = 1
+    }
+
+    for (j in target_cols) {
+      node_to_edit <- xml_child(row_to_edit, j)
+      if (!xml_has_attr(node_to_edit, "indentlevel")) {
+        xml_attr(node_to_edit, "style") <- paste(
+          xml_attr(node_to_edit, "style"), "padding-left: ",paste0(level_of_indent*2,"em;")
+        )
+        xml_attr(node_to_edit, "indentlevel") <- 1
+      } else {
+        indentLevel <- as.numeric(xml_attr(node_to_edit, "indentlevel"))
+        xml_attr(node_to_edit, "style") <- sub(
+          paste0("padding-left: ", indentLevel * 2, "em;"),
+          paste0("padding-left: ", (indentLevel + 1) * 2, "em;"),
+          xml_attr(node_to_edit, "style")
+        )
+        xml_attr(node_to_edit, "indentlevel") <- indentLevel + 1
+      }
     }
   }
   out <- as_kable_xml(kable_xml)
diff --git a/R/collapse_rows.R b/R/collapse_rows.R
index 4ae0145..96769be 100644
--- a/R/collapse_rows.R
+++ b/R/collapse_rows.R
@@ -7,7 +7,7 @@
 #' specify column styles, you should use `column_spec` before `collapse_rows`.
 #'
 #' @param kable_input Output of `knitr::kable()` with `format` specified
-#' @param columns A numeric value or vector indicating in which column(s) rows 
+#' @param columns A numeric value or vector indicating in which column(s) rows
 #' need to be collapsed.
 #' @param valign Select from "top", "middle"(default), "bottom". The reason why
 #' "top" is not default is that the multirow package on CRAN win-builder is
@@ -35,7 +35,8 @@
                           row_group_label_position = c('identity', 'stack'),
                           custom_latex_hline = NULL,
                           row_group_label_fonts = NULL,
-                          headers_to_remove = NULL) {
+                          headers_to_remove = NULL,
+                          target = NULL) {
   kable_format <- attr(kable_input, "format")
   if (!kable_format %in% c("html", "latex")) {
     warning("Please specify format in kable. kableExtra can customize either ",
@@ -44,8 +45,13 @@
     return(kable_input)
   }
   valign <- match.arg(valign, c("middle", "top", "bottom"))
+  if (!is.null(target)) {
+    if (length(target) > 1 && is.integer(target)) {
+      stop("target can only be a length 1 integer")
+    }
+  }
   if (kable_format == "html") {
-    return(collapse_rows_html(kable_input, columns, valign))
+    return(collapse_rows_html(kable_input, columns, valign, target))
   }
   if (kable_format == "latex") {
     latex_hline <- match.arg(latex_hline, c("full", "major", "none", "custom"))
@@ -53,26 +59,30 @@
                                           c('identity', 'stack'))
     return(collapse_rows_latex(kable_input, columns, latex_hline, valign,
       row_group_label_position, row_group_label_fonts, custom_latex_hline,
-      headers_to_remove))
+      headers_to_remove, target))
   }
 }
 
-collapse_rows_html <- function(kable_input, columns, valign) {
+collapse_rows_html <- function(kable_input, columns, valign, target) {
   kable_attrs <- attributes(kable_input)
-  kable_xml <- read_kable_as_xml(kable_input)
+  kable_xml <- kable_as_xml(kable_input)
   kable_tbody <- xml_tpart(kable_xml, "tbody")
 
   kable_dt <- rvest::html_table(xml2::read_html(as.character(kable_input)))[[1]]
   if (is.null(columns)) {
     columns <- seq(1, ncol(kable_dt))
   }
+  if (!is.null(target)) {
+    if (!target %in% columns) {
+      stop("target has to be within the range of columns")
+    }
+  }
   if (!is.null(kable_attrs$header_above)) {
     kable_dt_col_names <- unlist(kable_dt[kable_attrs$header_above, ])
     kable_dt <- kable_dt[-(1:kable_attrs$header_above),]
     names(kable_dt) <- kable_dt_col_names
   }
-  kable_dt$row_id <- seq(nrow(kable_dt))
-  collapse_matrix <- collapse_row_matrix(kable_dt, columns)
+  collapse_matrix <- collapse_row_matrix(kable_dt, columns, target = target)
 
   for (i in 1:nrow(collapse_matrix)) {
     matrix_row <- collapse_matrix[i, ]
@@ -96,29 +106,47 @@
   }
 
   out <- as_kable_xml(kable_xml)
+  kable_attrs$collapse_matrix <- collapse_matrix
   attributes(out) <- kable_attrs
   if (!"kableExtra" %in% class(out)) class(out) <- c("kableExtra", class(out))
   return(out)
 }
 
-collapse_row_matrix <- function(kable_dt, columns, html = T)  {
+split_factor <- function(x) {
+  group_idx <- seq(1, length(x))
+  return(factor(unlist(lapply(group_idx, function(i) {rep(i, x[i])}))))
+}
+
+collapse_row_matrix <- function(kable_dt, columns, html = T, target = NULL)  {
   if (html) {
     column_block <- function(x) c(x, rep(0, x - 1))
   } else {
     column_block <- function(x) c(rep(0, x - 1), x)
   }
   mapping_matrix <- list()
-  for (i in columns) {
-    mapping_matrix[[paste0("x", i)]] <- unlist(lapply(
-      rle(kable_dt[, i])$lengths, column_block))
+  if (is.null(target)) {
+    for (i in columns) {
+      mapping_matrix[[paste0("x", i)]] <- unlist(lapply(
+        rle(kable_dt[, i])$lengths, column_block))
+    }
+  } else {
+    target_group = split_factor(rle(kable_dt[, target])$lengths)
+    for (i in columns) {
+      column_split = split(kable_dt[, i], target_group)
+      mapping_matrix[[paste0("x", i)]] <- unlist(lapply(
+        column_split, function(sp) {
+          lapply(rle(sp)$length, column_block)
+        }))
+    }
   }
+
   mapping_matrix <- data.frame(mapping_matrix)
   return(mapping_matrix)
 }
 
 collapse_rows_latex <- function(kable_input, columns, latex_hline, valign,
                                 row_group_label_position, row_group_label_fonts,
-                                custom_latex_hline, headers_to_remove) {
+                                custom_latex_hline, headers_to_remove, target) {
   table_info <- magic_mirror(kable_input)
   out <- solve_enc(kable_input)
 
@@ -136,8 +164,10 @@
   contents <- table_info$contents
   kable_dt <- kable_dt_latex(contents)
 
-  collapse_matrix_rev <- collapse_row_matrix(kable_dt, columns, html = TRUE)
-  collapse_matrix <- collapse_row_matrix(kable_dt, columns, html = FALSE)
+  collapse_matrix_rev <- collapse_row_matrix(kable_dt, columns, html = TRUE,
+                                             target)
+  collapse_matrix <- collapse_row_matrix(kable_dt, columns, html = FALSE,
+                                         target)
 
   new_kable_dt <- kable_dt
   for (j in seq_along(columns)) {
@@ -160,7 +190,7 @@
   }
 
   midrule_matrix <- collapse_row_matrix(kable_dt, seq(1, table_info$ncol),
-                                        html = F)
+                                        html = FALSE, target)
   midrule_matrix[setdiff(seq(1, table_info$ncol), columns)] <- 1
 
   ex_bottom <- length(contents) - 1
@@ -208,7 +238,7 @@
       )
       new_contents[i] <- paste0(new_contents[i], "\\\\\\\\\n", row_midrule)
     }
-    out <- sub(contents[i + 1], new_contents[i], out)
+    out <- sub(contents[i + 1], new_contents[i], out, perl=TRUE)
   }
   out <- gsub("\\\\addlinespace\n", "", out)
 
diff --git a/R/dummy_table.R b/R/dummy_table.R
new file mode 100644
index 0000000..4c0831d
--- /dev/null
+++ b/R/dummy_table.R
@@ -0,0 +1,15 @@
+#' Dummy html table for testing
+#' @description Create dummy table for testing in kE
+#' @export
+dummy_html_tbl <- function() {
+  return(kable_styling(kable(mtcars[1:5, 1:5], "html",
+                             align = c("l", "l", rep("r", 4)))))
+}
+
+#' Dummy latex table for testing
+#' @description Create dummy table for testing in kE
+#' @export
+dummy_latex_tbl <- function(booktabs = T) {
+  return(kable_styling(kable(mtcars[1:5, 1:5], "latex", booktabs = booktabs,
+                             align = c("l", "l", rep("r", 4)))))
+}
diff --git a/R/footnote.R b/R/footnote.R
index 01f0c57..59478c3 100644
--- a/R/footnote.R
+++ b/R/footnote.R
@@ -339,11 +339,11 @@
   }
   if (!ft_chunk) {
     footnote_text <- paste0(
-      '\\\\multicolumn{', ncol, '}{l}{', footnote_text, '}\\\\\\\\'
+      '\\\\multicolumn{', ncol, '}{l}{\\\\rule{0pt}{1em}', footnote_text, '}\\\\\\\\'
     )
   } else {
     footnote_text <- paste0(
-      '\\\\multicolumn{', ncol, '}{l}{',
+      '\\\\multicolumn{', ncol, '}{l}{\\\\rule{0pt}{1em}',
       paste0(footnote_text, collapse = " "),
       '}\\\\\\\\'
     )
diff --git a/R/group_rows.R b/R/group_rows.R
index 33a517c..09fad01 100644
--- a/R/group_rows.R
+++ b/R/group_rows.R
@@ -212,9 +212,17 @@
                       regex_escape(extra_latex_after, double_backslash = TRUE))
   }
   new_rowtext <- paste0(pre_rowtext, rowtext)
-  out <- sub(paste0(rowtext, "\\\\\\\\\n"),
-  	         paste0(new_rowtext, "\\\\\\\\\n"),
-  	         out)
+  if (start_row + 1 == table_info$nrow &
+      !is.null(table_info$repeat_header_latex)) {
+    out <- sub(paste0(rowtext, "\\\\\\\\\\*\n"),
+               paste0(new_rowtext, "\\\\\\\\\\*\n"),
+               out)
+  } else {
+    out <- sub(paste0(rowtext, "\\\\\\\\\n"),
+               paste0(new_rowtext, "\\\\\\\\\n"),
+               out)
+  }
+
   out <- gsub("\\\\addlinespace\n", "", out)
   out <- structure(out, format = "latex", class = "knitr_kable")
   table_info$group_rows_used <- TRUE
diff --git a/R/kableExtra-package.R b/R/kableExtra-package.R
index ea2a1da..c01f058 100644
--- a/R/kableExtra-package.R
+++ b/R/kableExtra-package.R
@@ -59,7 +59,7 @@
 #' str_extract str_replace_all str_trim str_extract_all str_sub str_replace
 #' @importFrom xml2 read_xml xml_attr xml_has_attr xml_attr<- read_html
 #' xml_child xml_children xml_name xml_add_sibling xml_add_child xml_text
-#' xml_remove write_xml xml_text<-
+#' xml_remove write_xml xml_text<- xml_length
 #' @importFrom rvest html_table
 #' @importFrom knitr knit_meta_add include_graphics knit_print asis_output kable
 #' @importFrom rmarkdown latex_dependency html_dependency_bootstrap
diff --git a/R/kable_styling.R b/R/kable_styling.R
index 67e0234..7e4c5e7 100644
--- a/R/kable_styling.R
+++ b/R/kable_styling.R
@@ -317,6 +317,7 @@
   if ("repeat_header" %in% latex_options & table_info$tabular == "longtable") {
     out <- styling_latex_repeat_header(out, table_info, repeat_header_text,
                                        repeat_header_method, repeat_header_continued)
+    table_info$repeat_header_latex <- TRUE
   }
 
   if (full_width) {
diff --git a/R/print.R b/R/print.R
index 03e66ab..09e7cef 100644
--- a/R/print.R
+++ b/R/print.R
@@ -6,15 +6,14 @@
     html_dependency_kePrint()
   )
   html_kable <- htmltools::browsable(
-    htmltools::HTML(as.character(x))
+    htmltools::HTML(
+      as.character(x),
+      '<script type="text/x-mathjax-config">MathJax.Hub.Config({tex2jax: {inlineMath: [["$","$"], ["\\(","\\)"]]}})</script>;<script async src="https://mathjax.rstudio.com/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script>'
+      )
   )
   htmlDependencies(html_kable) <- dep
   class(html_kable) <- "shiny.tag.list"
   print(html_kable)
-  # if (interactive() & rstudioapi::isAvailable()) {
-  #   htmltools::html_print(html_result, viewer = rstudioapi::viewer)
-  # }
-  # print(html_result)
 }
 
 #' HTML dependency for js script to enable bootstrap tooltip and popup message
@@ -59,3 +58,5 @@
 
 
 
+
+
diff --git a/R/remove_column.R b/R/remove_column.R
new file mode 100644
index 0000000..3bff2f1
--- /dev/null
+++ b/R/remove_column.R
@@ -0,0 +1,96 @@
+#' Remove columns
+#'
+#' @param kable_input Output of [knitr::kable()] with format specified
+#' @param columns A numeric value or vector indicating in which column(s) rows
+#' need to be removed
+#'
+#' @export
+#'
+#' @examples
+#' remove_column(kable(mtcars), 1)
+remove_column <- function (kable_input, columns) {
+    if (is.null(columns)) return(kable_input)
+    kable_format <- attr(kable_input, "format")
+    if (!kable_format %in% c("html", "latex")) {
+        warning("Please specify format in kable. kableExtra can customize",
+                " either HTML or LaTeX outputs. See ",
+                "https://haozhu233.github.io/kableExtra/ for details.")
+        return(kable_input)
+    }
+
+    columns <- sort(unique(columns))
+    if (kable_format == "html") {
+        return(remove_column_html(kable_input, columns))
+    } else if (kable_format == "latex") {
+        stop("Removing columns was not implemented for latex kables yet")
+    }
+}
+
+remove_column_html <- function (kable_input, columns) {
+    kable_attrs <- attributes(kable_input)
+    kable_xml <- kable_as_xml(kable_input)
+    kable_tbody <- xml_tpart(kable_xml, "tbody")
+    kable_thead <- xml_tpart(kable_xml, "thead")
+
+    group_header_rows <- attr(kable_input, "group_header_rows")
+    all_contents_rows <- seq(1, length(xml_children(kable_tbody)))
+
+    if (!is.null(group_header_rows)) {
+        warning("It's recommended to use remove_column after add_header_above.",
+                "Right now some column span numbers might not be correct. ")
+        all_contents_rows <- all_contents_rows[!all_contents_rows %in%
+                                                   group_header_rows]
+    }
+
+    collapse_matrix <- attr(kable_input, "collapse_matrix")
+    collapse_columns <- NULL
+    if (!is.null(collapse_matrix)) {
+        collapse_columns <- sort(as.numeric(sub("x", "",
+                                                names(collapse_matrix))))
+        collapse_columns_origin <- collapse_columns
+    }
+
+    while (length(columns) > 0) {
+        xml2::xml_remove(xml2::xml_child(
+            xml2::xml_child(kable_thead, xml2::xml_length(kable_thead)),
+            columns[1]))
+        if (length(collapse_columns) != 0 && collapse_columns[1] <= columns[1]){
+            if (columns[1] %in% collapse_columns) {
+                column_span <- collapse_matrix[[paste0('x', columns[1])]]
+                non_skip_rows <- column_span != 0
+                collapse_columns <- collapse_columns[
+                    collapse_columns != columns[1]
+                    ] - 1
+            } else {
+                non_skip_rows <- rep(TRUE, length(all_contents_rows))
+            }
+            prior_col <- which(collapse_columns_origin < columns[1])
+            for (i in all_contents_rows[non_skip_rows]) {
+                if (length(prior_col) == 0) {
+                    pos_adj <- 0
+                } else {
+                    pos_adj <- sum(collapse_matrix[i, prior_col] == 0)
+                }
+                target_cell <- xml2::xml_child(
+                    xml2::xml_child(kable_tbody, i),
+                    columns[1] - pos_adj)
+                xml2::xml_remove(target_cell)
+            }
+        } else {
+            for (i in all_contents_rows) {
+                target_cell <- xml2::xml_child(
+                    xml2::xml_child(kable_tbody, i),
+                    columns[1])
+                xml2::xml_remove(target_cell)
+            }
+        }
+        # not very efficient but for finite task it's probably okay
+        columns <- (columns - 1)[-1]
+    }
+    out <- as_kable_xml(kable_xml)
+    attributes(out) <- kable_attrs
+    if (!"kableExtra" %in% class(out))
+        class(out) <- c("kableExtra", class(out))
+
+    return(out)
+}
diff --git a/R/row_spec.R b/R/row_spec.R
index ff95c0e..cc8978e 100644
--- a/R/row_spec.R
+++ b/R/row_spec.R
@@ -198,7 +198,9 @@
                                      underline, strikeout,
                                      color, background, align, font_size, angle,
                                      hline_after, extra_latex_after)
-    temp_sub <- ifelse(i == 1 & table_info$tabular == "longtable", gsub, sub)
+    temp_sub <- ifelse(i == 1 & (table_info$tabular == "longtable" |
+                                   !is.null(table_info$repeat_header_latex)),
+                       gsub, sub)
     if (length(new_row) == 1) {
       out <- temp_sub(target_row, new_row, out, perl = T)
       table_info$contents[i] <- new_row
diff --git a/R/save_kable.R b/R/save_kable.R
index 3c3a5fa..8238552 100644
--- a/R/save_kable.R
+++ b/R/save_kable.R
@@ -144,7 +144,7 @@
 
   owd <- setwd(dirname(temp_tex_file))
 
-  system(paste0("xelatex -interaction=batchmode ", temp_tex_file))
+  system(paste0('xelatex -interaction=batchmode "', temp_tex_file,'"'))
   if (!keep_tex) {
     temp_file_delete <- paste0(file_no_ext, c(".tex", ".aux", ".log"))
     unlink(temp_file_delete)
diff --git a/R/util.R b/R/util.R
index e01b4dc..df04344 100644
--- a/R/util.R
+++ b/R/util.R
@@ -117,20 +117,6 @@
 
 # Fix duplicated rows in LaTeX tables
 fix_duplicated_rows_latex <- function(kable_input, table_info) {
-  # dup_items <- table(table_info$contents)
-  # dup_items <- dup_items[dup_items != 1]
-  #
-  # for (di in seq(length(dup_items))) {
-  #   dup_row <- names(dup_items[di])
-  #   di_index <- which(table_info$contents == dup_row)
-  #   for (i in seq(dup_items[di])) {
-  #     new_row <- str_replace(
-  #       dup_row, "(?<=\\s)([\\S]+[\\s]*)$",
-  #       paste0("\\\\\\\\vphantom\\\\{", i, "\\\\} \\1"))
-  #     kable_input <- sub(dup_row, new_row, kable_input)
-  #     table_info$contents[di_index[i]] <- new_row
-  #   }
-  # }
   # Since sub/string_replace start from beginning, we count unique value from
   # behind.
   rev_contents <- rev(table_info$contents)
diff --git a/R/zzz.R b/R/zzz.R
index c12793b..36133e7 100644
--- a/R/zzz.R
+++ b/R/zzz.R
@@ -15,7 +15,7 @@
       usepackage_latex("threeparttablex")
       usepackage_latex("ulem", "normalem")
       usepackage_latex("makecell")
-      usepackage_latex("xcolor")
+      # usepackage_latex("xcolor")
     }
   }
   auto_format <- getOption("kableExtra.auto_format", default = TRUE)
diff --git a/README.md b/README.md
index 2ac66c2..b46a973 100644
--- a/README.md
+++ b/README.md
@@ -51,14 +51,14 @@
   kable_styling(bootstrap_options = "striped",
                 full_width = F) %>%
   add_header_above(c(" ", "Group 1" = 2, "Group 2[note]" = 2)) %>%
-  add_footnote(c("table footnote"))
+  footnote(c("table footnote"))
 
 # LaTeX Table
 kable(dt, format = "latex", booktabs = T, caption = "Demo Table") %>%
   kable_styling(latex_options = c("striped", "hold_position"),
                 full_width = F) %>%
   add_header_above(c(" ", "Group 1" = 2, "Group 2[note]" = 2)) %>%
-  add_footnote(c("table footnote"))
+  footnote(c("table footnote"))
 
 ```
 ### Results
diff --git a/docs/awesome_table_in_pdf.Rmd b/docs/awesome_table_in_pdf.Rmd
index 549667a..7806224 100644
--- a/docs/awesome_table_in_pdf.Rmd
+++ b/docs/awesome_table_in_pdf.Rmd
@@ -78,7 +78,7 @@
 If you are using a recent version of rmarkdown, you are recommended to load this package entirely via `library(kableExtra)` or `require(kableExtra)` because this package will load all necessary LaTeX packages, such as `booktabs` or `multirow`, for you automatically. Note that, if you are calling functions from `kableExtra` via `kableExtra::kable_styling()` or if you put `library(kableExtra)` in a separate R file that is **sourced** by the rmarkdown document, these packages won't be loaded. Furthermore, you can suppress this auto-loading behavior by setting a global option `kableExtra.latex.load_packages` to be `FALSE` before you load `kableExtra`.
 
 ```{r, eval = FALSE}
-# Not evaluated. Ilustration purpose
+# Not evaluated. Illustration purpose
 options(kableExtra.latex.load_packages = FALSE)
 library(kableExtra)
 ```
@@ -189,7 +189,7 @@
   kable_styling(position = "center")
 ```
 
-Becides these three common options, you can also wrap text around the table using the `float-left` or `float-right` options. Note that, like `striped`, this feature will load another non-default LaTeX package `wrapfig` which requires rmarkdown 1.4.0 +. If you rmarkdown version < 1.4.0, you need to load the package through a customed LaTeX template file. 
+Besides these three common options, you can also wrap text around the table using the `float-left` or `float-right` options. Note that, like `striped`, this feature will load another non-default LaTeX package `wrapfig` which requires rmarkdown 1.4.0 +. If you rmarkdown version < 1.4.0, you need to load the package through a customed LaTeX template file. 
 ```{r}
 kable(dt, "latex", booktabs = T) %>%
   kable_styling(position = "float_right")
@@ -363,12 +363,19 @@
 
 ## Row indentation
 Unlike `pack_rows()`, which will insert a labeling row, sometimes we want to list a few sub groups under a total one. In that case, `add_indent()` is probably more appropriate.  
-For advanced users, you can even define your own css for the group labeling.
+
 ```{r}
 kable(dt, "latex", booktabs = T) %>%
   add_indent(c(1, 3, 5))
 ```
 
+You can also specify the width of the indentation by the `level_of_indent` option. At the same time, if you want to indent every column, you can choose to turn on `all_cols`. Note that if a column is right aligned, you probably won't be able to see the effect. 
+
+```{r}
+kable(dt, "latex", booktabs = T, align = "l") %>%
+  add_indent(c(1, 3, 5), level_of_indent = 2, all_cols = T)
+```
+
 ## Group rows via multi-row cell
 Function `pack_rows` is great for showing simple structural information on rows but sometimes people may need to show structural information with multiple layers. When it happens, you may consider using `collapse_rows` instead, which will put repeating cells in columns into multi-row cells.  
 
diff --git a/docs/awesome_table_in_pdf.log b/docs/awesome_table_in_pdf.log
deleted file mode 100644
index 8aec9ad..0000000
--- a/docs/awesome_table_in_pdf.log
+++ /dev/null
@@ -1,1310 +0,0 @@
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diff --git a/docs/awesome_table_in_pdf.pdf b/docs/awesome_table_in_pdf.pdf
index ceec97d..846ec7a 100644
--- a/docs/awesome_table_in_pdf.pdf
+++ b/docs/awesome_table_in_pdf.pdf
Binary files differ
diff --git a/docs/awesome_table_in_pdf.toc b/docs/awesome_table_in_pdf.toc
index 56e8517..b8b6038 100644
--- a/docs/awesome_table_in_pdf.toc
+++ b/docs/awesome_table_in_pdf.toc
@@ -1,36 +1,36 @@
-\contentsline {section}{Overview}{3}{section*.2}% 
-\contentsline {section}{Installation}{3}{section*.3}% 
-\contentsline {section}{Getting Started}{3}{section*.4}% 
-\contentsline {subsection}{LaTeX packages used in this package}{4}{section*.5}% 
-\contentsline {subsection}{Plain LaTeX}{4}{section*.6}% 
-\contentsline {subsection}{LaTeX table with booktabs}{5}{section*.7}% 
-\contentsline {section}{Table Styles}{5}{section*.8}% 
-\contentsline {subsection}{LaTeX options}{5}{section*.9}% 
-\contentsline {subsubsection}{Striped}{5}{section*.10}% 
-\contentsline {subsubsection}{Hold position}{6}{section*.11}% 
-\contentsline {subsubsection}{Scale down}{7}{section*.12}% 
-\contentsline {subsubsection}{Repeat header in longtable}{7}{section*.13}% 
-\contentsline {subsection}{Full width?}{9}{section*.14}% 
-\contentsline {subsection}{Position}{9}{section*.15}% 
-\contentsline {subsection}{Font Size}{10}{section*.16}% 
-\contentsline {section}{Column / Row Specification}{11}{section*.17}% 
-\contentsline {subsection}{Column spec}{11}{section*.18}% 
-\contentsline {subsection}{Row spec}{11}{section*.19}% 
-\contentsline {subsection}{Header Rows}{12}{section*.20}% 
-\contentsline {section}{Cell/Text Specification}{12}{section*.21}% 
-\contentsline {subsection}{Conditional logic}{12}{section*.22}% 
-\contentsline {subsection}{Visualize data with Viridis Color}{13}{section*.23}% 
-\contentsline {subsection}{Text Specification}{14}{section*.24}% 
-\contentsline {section}{Grouped Columns / Rows}{14}{section*.25}% 
-\contentsline {subsection}{Add header rows to group columns}{14}{section*.26}% 
-\contentsline {subsection}{Group rows via labeling}{15}{section*.27}% 
-\contentsline {subsection}{Row indentation}{17}{section*.28}% 
-\contentsline {subsection}{Group rows via multi-row cell}{17}{section*.29}% 
-\contentsline {section}{Table Footnote}{20}{section*.30}% 
-\contentsline {section}{LaTeX Only Features}{23}{section*.31}% 
-\contentsline {subsection}{Linebreak processor}{23}{section*.32}% 
-\contentsline {subsection}{Table on a Landscape Page}{23}{section*.33}% 
-\contentsline {subsection}{Use LaTeX table in HTML or Word}{25}{section*.34}% 
-\contentsline {section}{From other packages}{25}{section*.35}% 
-\contentsline {subsection}{\texttt {tables}}{25}{section*.36}% 
-\contentsline {subsection}{\texttt {xtable}}{25}{section*.37}% 
+\contentsline {section}{Overview}{2}{section*.2}%
+\contentsline {section}{Installation}{2}{section*.3}%
+\contentsline {section}{Getting Started}{2}{section*.4}%
+\contentsline {subsection}{LaTeX packages used in this package}{3}{section*.5}%
+\contentsline {subsection}{Plain LaTeX}{3}{section*.6}%
+\contentsline {subsection}{LaTeX table with booktabs}{4}{section*.7}%
+\contentsline {section}{Table Styles}{4}{section*.8}%
+\contentsline {subsection}{LaTeX options}{4}{section*.9}%
+\contentsline {subsubsection}{Striped}{4}{section*.10}%
+\contentsline {subsubsection}{Hold position}{5}{section*.11}%
+\contentsline {subsubsection}{Scale down}{5}{section*.12}%
+\contentsline {subsubsection}{Repeat header in longtable}{6}{section*.13}%
+\contentsline {subsection}{Full width?}{8}{section*.14}%
+\contentsline {subsection}{Position}{8}{section*.15}%
+\contentsline {subsection}{Font Size}{9}{section*.16}%
+\contentsline {section}{Column / Row Specification}{9}{section*.17}%
+\contentsline {subsection}{Column spec}{9}{section*.18}%
+\contentsline {subsection}{Row spec}{10}{section*.19}%
+\contentsline {subsection}{Header Rows}{10}{section*.20}%
+\contentsline {section}{Cell/Text Specification}{10}{section*.21}%
+\contentsline {subsection}{Conditional logic}{11}{section*.22}%
+\contentsline {subsection}{Visualize data with Viridis Color}{11}{section*.23}%
+\contentsline {subsection}{Text Specification}{12}{section*.24}%
+\contentsline {section}{Grouped Columns / Rows}{12}{section*.25}%
+\contentsline {subsection}{Add header rows to group columns}{12}{section*.26}%
+\contentsline {subsection}{Group rows via labeling}{13}{section*.27}%
+\contentsline {subsection}{Row indentation}{15}{section*.28}%
+\contentsline {subsection}{Group rows via multi-row cell}{15}{section*.29}%
+\contentsline {section}{Table Footnote}{18}{section*.30}%
+\contentsline {section}{LaTeX Only Features}{20}{section*.31}%
+\contentsline {subsection}{Linebreak processor}{20}{section*.32}%
+\contentsline {subsection}{Table on a Landscape Page}{21}{section*.33}%
+\contentsline {subsection}{Use LaTeX table in HTML or Word}{23}{section*.34}%
+\contentsline {section}{From other packages}{23}{section*.35}%
+\contentsline {subsection}{\texttt {tables}}{23}{section*.36}%
+\contentsline {subsection}{\texttt {xtable}}{23}{section*.37}%
diff --git a/inst/NEWS.md b/inst/NEWS.md
index 3244010..2a75d00 100644
--- a/inst/NEWS.md
+++ b/inst/NEWS.md
@@ -1,4 +1,33 @@
-kableExtra 1.1.0
+kableExtra 1.2.0
+--------------------------------------------------------------------------------
+
+* `add_indent` has a new option `level_of_indent` to control the width of the
+indentation. (thanks @samiaab1990 #479)
+
+* `add_indent` has a new option `all_cols` to control whether the indentation
+should be applied to the first column or all columns. Default is False. (#488)
+
+* Removed xcolor from latex dependency list
+
+* `collapse_rows` has a new option `target` to choose the target column in 
+`collapse_rows` (#484)
+
+* Fixed a bug with `group_rows` when used with `repeat_header` on the last row
+(#476)
+
+* Added mathjax to preview (#473)
+
+* Fixed a bug with `repeat_header` when the header row is customized (#480)
+
+* Fixed a bug with `collapse_rows` when text is too long. (#464)
+
+* Added a new function `remove_column` for html. The latex part hasn't been 
+implemented yet. (#490, thanks @DanChaltiel)
+
+
+
+kableExtra ]
+1.1.0
 --------------------------------------------------------------------------------
 
 # Major Changes
diff --git a/man/add_footnote.Rd b/man/add_footnote.Rd
index 79eff3b..525ce26 100644
--- a/man/add_footnote.Rd
+++ b/man/add_footnote.Rd
@@ -4,8 +4,13 @@
 \alias{add_footnote}
 \title{Add footnote}
 \usage{
-add_footnote(input, label = NULL, notation = "alphabet",
-  threeparttable = FALSE, escape = TRUE)
+add_footnote(
+  input,
+  label = NULL,
+  notation = "alphabet",
+  threeparttable = FALSE,
+  escape = TRUE
+)
 }
 \arguments{
 \item{input}{The direct output of your \code{kable} function or your last
diff --git a/man/add_header_above.Rd b/man/add_header_above.Rd
index 5174db8..2f0d133 100644
--- a/man/add_header_above.Rd
+++ b/man/add_header_above.Rd
@@ -4,11 +4,27 @@
 \alias{add_header_above}
 \title{Add a header row on top of current header}
 \usage{
-add_header_above(kable_input, header = NULL, bold = FALSE,
-  italic = FALSE, monospace = FALSE, underline = FALSE,
-  strikeout = FALSE, align = "c", color = NULL, background = NULL,
-  font_size = NULL, angle = NULL, escape = TRUE, line = TRUE,
-  line_sep = 3, extra_css = NULL, include_empty = FALSE)
+add_header_above(
+  kable_input,
+  header = NULL,
+  bold = FALSE,
+  italic = FALSE,
+  monospace = FALSE,
+  underline = FALSE,
+  strikeout = FALSE,
+  align = "c",
+  color = NULL,
+  background = NULL,
+  font_size = NULL,
+  angle = NULL,
+  escape = TRUE,
+  line = TRUE,
+  line_sep = 3,
+  extra_css = NULL,
+  include_empty = FALSE,
+  border_left = FALSE,
+  border_right = FALSE
+)
 }
 \arguments{
 \item{kable_input}{Output of \code{knitr::kable()} with \code{format} specified}
@@ -16,7 +32,7 @@
 \item{header}{A (named) character vector with \code{colspan} as values. For
 example, \code{c(" " = 1, "title" = 2)} can be used to create a new header row
 for a 3-column table with "title" spanning across column 2 and 3. For
-convenience, when \code{colspan} equals to 1, users can drop the \code{ = 1} part.
+convenience, when \code{colspan} equals to 1, users can drop the \verb{ = 1} part.
 As a result, \code{c(" ", "title" = 2)} is the same as \code{c(" " = 1, "title" = 2)}.}
 
 \item{bold}{A T/F value to control whether the text should be bolded.}
@@ -64,6 +80,10 @@
 
 \item{include_empty}{Whether empty cells in HTML should also be styled.
 Default is FALSE.}
+
+\item{border_left}{T/F option for border on the left side in latex.}
+
+\item{border_right}{T/F option for border on the right side in latex.}
 }
 \description{
 Tables with multiple rows of header rows are extremely useful
diff --git a/man/add_indent.Rd b/man/add_indent.Rd
index 439fd29..7889802 100644
--- a/man/add_indent.Rd
+++ b/man/add_indent.Rd
@@ -4,13 +4,15 @@
 \alias{add_indent}
 \title{Add indentations to row headers}
 \usage{
-add_indent(kable_input, positions)
+add_indent(kable_input, positions, level_of_indent = 1, all_cols = FALSE)
 }
 \arguments{
 \item{kable_input}{Output of \code{knitr::kable()} with \code{format} specified}
 
 \item{positions}{A vector of numeric row numbers for the rows that need to
 be indented.}
+
+\item{level_of_indent}{a numeric value for the indent level. Default is 1.}
 }
 \description{
 Add indentations to row headers
@@ -18,6 +20,6 @@
 \examples{
 x <- knitr::kable(head(mtcars), "html")
 # Add indentations to the 2nd & 4th row
-add_indent(x, c(2, 4))
+add_indent(x, c(2, 4), level_of_indent = 1)
 
 }
diff --git a/man/as_image.Rd b/man/as_image.Rd
index 1d1688a..1219ff8 100644
--- a/man/as_image.Rd
+++ b/man/as_image.Rd
@@ -25,3 +25,13 @@
 and then try to put it in an rmarkdown document using
 \code{knitr::include_graphics}.
 }
+\examples{
+\dontrun{
+library(kableExtra)
+
+kable(mtcars, "latex", booktabs = T) \%>\%
+kable_styling(latex_options = c("striped", "scale_down")) \%>\%
+row_spec(1, color = "red") \%>\%
+as_image()
+}
+}
diff --git a/man/cell_spec.Rd b/man/cell_spec.Rd
index f8d09af..61ff27c 100644
--- a/man/cell_spec.Rd
+++ b/man/cell_spec.Rd
@@ -5,19 +5,49 @@
 \alias{text_spec}
 \title{Specify Cell/Text format}
 \usage{
-cell_spec(x, format, bold = FALSE, italic = FALSE, monospace = FALSE,
-  underline = FALSE, strikeout = FALSE, color = NULL,
-  background = NULL, align = NULL, font_size = NULL, angle = NULL,
-  tooltip = NULL, popover = NULL, link = NULL, extra_css = NULL,
-  escape = TRUE, background_as_tile = TRUE,
-  latex_background_in_cell = TRUE)
+cell_spec(
+  x,
+  format,
+  bold = FALSE,
+  italic = FALSE,
+  monospace = FALSE,
+  underline = FALSE,
+  strikeout = FALSE,
+  color = NULL,
+  background = NULL,
+  align = NULL,
+  font_size = NULL,
+  angle = NULL,
+  tooltip = NULL,
+  popover = NULL,
+  link = NULL,
+  extra_css = NULL,
+  escape = TRUE,
+  background_as_tile = TRUE,
+  latex_background_in_cell = TRUE
+)
 
-text_spec(x, format, bold = FALSE, italic = FALSE, monospace = FALSE,
-  underline = FALSE, strikeout = FALSE, color = NULL,
-  background = NULL, align = NULL, font_size = NULL, angle = NULL,
-  tooltip = NULL, popover = NULL, link = NULL, extra_css = NULL,
-  escape = TRUE, background_as_tile = TRUE,
-  latex_background_in_cell = FALSE)
+text_spec(
+  x,
+  format,
+  bold = FALSE,
+  italic = FALSE,
+  monospace = FALSE,
+  underline = FALSE,
+  strikeout = FALSE,
+  color = NULL,
+  background = NULL,
+  align = NULL,
+  font_size = NULL,
+  angle = NULL,
+  tooltip = NULL,
+  popover = NULL,
+  link = NULL,
+  extra_css = NULL,
+  escape = TRUE,
+  background_as_tile = TRUE,
+  latex_background_in_cell = FALSE
+)
 }
 \arguments{
 \item{x}{Things to be formated. It could be a vector of numbers or strings.}
diff --git a/man/collapse_rows.Rd b/man/collapse_rows.Rd
index 4752d80..f145342 100644
--- a/man/collapse_rows.Rd
+++ b/man/collapse_rows.Rd
@@ -4,11 +4,17 @@
 \alias{collapse_rows}
 \title{Collapse repeated rows to multirow cell}
 \usage{
-collapse_rows(kable_input, columns = NULL, valign = c("middle", "top",
-  "bottom"), latex_hline = c("full", "major", "none", "custom"),
+collapse_rows(
+  kable_input,
+  columns = NULL,
+  valign = c("middle", "top", "bottom"),
+  latex_hline = c("full", "major", "none", "custom"),
   row_group_label_position = c("identity", "stack"),
-  custom_latex_hline = NULL, row_group_label_fonts = NULL,
-  headers_to_remove = NULL)
+  custom_latex_hline = NULL,
+  row_group_label_fonts = NULL,
+  headers_to_remove = NULL,
+  target = NULL
+)
 }
 \arguments{
 \item{kable_input}{Output of \code{knitr::kable()} with \code{format} specified}
diff --git a/man/column_spec.Rd b/man/column_spec.Rd
index b611fad..0857f4d 100644
--- a/man/column_spec.Rd
+++ b/man/column_spec.Rd
@@ -4,12 +4,25 @@
 \alias{column_spec}
 \title{Specify the look of the selected column}
 \usage{
-column_spec(kable_input, column, width = NULL, bold = FALSE,
-  italic = FALSE, monospace = FALSE, underline = FALSE,
-  strikeout = FALSE, color = NULL, background = NULL,
-  border_left = FALSE, border_right = FALSE, width_min = NULL,
-  width_max = NULL, extra_css = NULL, include_thead = FALSE,
-  latex_column_spec = NULL)
+column_spec(
+  kable_input,
+  column,
+  width = NULL,
+  bold = FALSE,
+  italic = FALSE,
+  monospace = FALSE,
+  underline = FALSE,
+  strikeout = FALSE,
+  color = NULL,
+  background = NULL,
+  border_left = FALSE,
+  border_right = FALSE,
+  width_min = NULL,
+  width_max = NULL,
+  extra_css = NULL,
+  include_thead = FALSE,
+  latex_column_spec = NULL
+)
 }
 \arguments{
 \item{kable_input}{Output of \code{knitr::kable()} with \code{format} specified}
diff --git a/man/dummy_html_tbl.Rd b/man/dummy_html_tbl.Rd
new file mode 100644
index 0000000..983f1fc
--- /dev/null
+++ b/man/dummy_html_tbl.Rd
@@ -0,0 +1,11 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/dummy_table.R
+\name{dummy_html_tbl}
+\alias{dummy_html_tbl}
+\title{Dummy html table for testing}
+\usage{
+dummy_html_tbl()
+}
+\description{
+Create dummy table for testing in kE
+}
diff --git a/man/dummy_latex_tbl.Rd b/man/dummy_latex_tbl.Rd
new file mode 100644
index 0000000..84cc9ee
--- /dev/null
+++ b/man/dummy_latex_tbl.Rd
@@ -0,0 +1,11 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/dummy_table.R
+\name{dummy_latex_tbl}
+\alias{dummy_latex_tbl}
+\title{Dummy latex table for testing}
+\usage{
+dummy_latex_tbl(booktabs = T)
+}
+\description{
+Create dummy table for testing in kE
+}
diff --git a/man/footnote.Rd b/man/footnote.Rd
index 063ca3c..90a5b80 100644
--- a/man/footnote.Rd
+++ b/man/footnote.Rd
@@ -4,12 +4,24 @@
 \alias{footnote}
 \title{Add footnote (new)}
 \usage{
-footnote(kable_input, general = NULL, number = NULL, alphabet = NULL,
-  symbol = NULL, footnote_order = c("general", "number", "alphabet",
-  "symbol"), footnote_as_chunk = FALSE, escape = TRUE,
-  threeparttable = FALSE, fixed_small_size = FALSE,
-  general_title = "Note: ", number_title = "", alphabet_title = "",
-  symbol_title = "", title_format = "italic", symbol_manual = NULL)
+footnote(
+  kable_input,
+  general = NULL,
+  number = NULL,
+  alphabet = NULL,
+  symbol = NULL,
+  footnote_order = c("general", "number", "alphabet", "symbol"),
+  footnote_as_chunk = FALSE,
+  escape = TRUE,
+  threeparttable = FALSE,
+  fixed_small_size = FALSE,
+  general_title = "Note: ",
+  number_title = "",
+  alphabet_title = "",
+  symbol_title = "",
+  title_format = "italic",
+  symbol_manual = NULL
+)
 }
 \arguments{
 \item{kable_input}{HTML or LaTeX table generated by \code{knitr::kable}}
@@ -57,7 +69,7 @@
 Multiple options are possible.}
 
 \item{symbol_manual}{User can manually supply a vector of either html or
-latex symbols. For example, \code{symbol_manual = c('*', '\\\\dag', '\\\\ddag')}.`}
+latex symbols. For example, \code{symbol_manual = c('*', '\\\\\\\\dag', '\\\\\\\\ddag')}.`}
 }
 \description{
 \code{footnote} provides a more flexible way to add footnote. You
diff --git a/man/footnote_marker_number.Rd b/man/footnote_marker_number.Rd
index 599f284..94b2e4d 100644
--- a/man/footnote_marker_number.Rd
+++ b/man/footnote_marker_number.Rd
@@ -20,7 +20,7 @@
 default value from global option \code{knitr.table.format}.}
 
 \item{double_escape}{T/F if output is in LaTeX, whether it should be double
-escaped. If you are using footnote_marker in \code{group_rows`` labeling row or }add_header_above\code{, you need to set this to be }TRUE`.}
+escaped. If you are using footnote_marker in \verb{group_rows`` labeling row or }add_header_above\verb{, you need to set this to be }TRUE`.}
 }
 \description{
 Put footnote mark in superscription in table. Unless you are
diff --git a/man/group_rows.Rd b/man/group_rows.Rd
index db032f5..d39d0d2 100644
--- a/man/group_rows.Rd
+++ b/man/group_rows.Rd
@@ -5,19 +5,45 @@
 \alias{pack_rows}
 \title{Put a few rows of a table into one category}
 \usage{
-group_rows(kable_input, group_label = NULL, start_row = NULL,
-  end_row = NULL, index = NULL,
+group_rows(
+  kable_input,
+  group_label = NULL,
+  start_row = NULL,
+  end_row = NULL,
+  index = NULL,
   label_row_css = "border-bottom: 1px solid;",
-  latex_gap_space = "0.3em", escape = TRUE, latex_align = "l",
-  colnum = NULL, bold = TRUE, italic = FALSE, hline_before = FALSE,
-  hline_after = FALSE, extra_latex_after = NULL, indent = TRUE)
+  latex_gap_space = "0.3em",
+  escape = TRUE,
+  latex_align = "l",
+  latex_wrap_text = FALSE,
+  colnum = NULL,
+  bold = TRUE,
+  italic = FALSE,
+  hline_before = FALSE,
+  hline_after = FALSE,
+  extra_latex_after = NULL,
+  indent = TRUE
+)
 
-pack_rows(kable_input, group_label = NULL, start_row = NULL,
-  end_row = NULL, index = NULL,
+pack_rows(
+  kable_input,
+  group_label = NULL,
+  start_row = NULL,
+  end_row = NULL,
+  index = NULL,
   label_row_css = "border-bottom: 1px solid;",
-  latex_gap_space = "0.3em", escape = TRUE, latex_align = "l",
-  colnum = NULL, bold = TRUE, italic = FALSE, hline_before = FALSE,
-  hline_after = FALSE, extra_latex_after = NULL, indent = TRUE)
+  latex_gap_space = "0.3em",
+  escape = TRUE,
+  latex_align = "l",
+  latex_wrap_text = FALSE,
+  colnum = NULL,
+  bold = TRUE,
+  italic = FALSE,
+  hline_before = FALSE,
+  hline_after = FALSE,
+  extra_latex_after = NULL,
+  indent = TRUE
+)
 }
 \arguments{
 \item{kable_input}{Output of \code{knitr::kable()} with \code{format} specified}
@@ -50,6 +76,10 @@
 Value is "l"  If using html, the alignment can be set by using the label_row_css
 parameter.}
 
+\item{latex_wrap_text}{T/F for wrapping long text. Default is off. Whenever
+it is turned on, the table will take up the entire line. It's recommended
+to use this with full_width in kable_styling.}
+
 \item{colnum}{A numeric that determines how many columns the text should span.
 The default setting will have the text span the entire length.}
 
diff --git a/man/kableExtra-package.Rd b/man/kableExtra-package.Rd
index f22e66c..4fba68e 100644
--- a/man/kableExtra-package.Rd
+++ b/man/kableExtra-package.Rd
@@ -9,8 +9,8 @@
 When we are talking about table generators in R,
 \href{https://yihui.name/knitr/}{knitr}'s \code{kable()} function wins lots of flavor
 by its ultimate simplicity. Unlike those powerful table rendering engines
-such as \href{https://CRAN.R-project.org/package=xtable}{xtable}, the philosophy
-behind \href{https://rdrr.io/cran/knitr/man/kable.html}{knitr::kable()} is to
+such as \href{https://CRAN.R-project.org/package=xtable}{\code{xtable}}, the philosophy
+behind \href{https://rdrr.io/cran/knitr/man/kable.html}{\code{knitr::kable()}} is to
 make it easy for programmers to use. Just as it claimed in its
 function description, "this is a very simple table generator. It is simple
 by design. It is not intended to replace any other R packages for making
@@ -29,9 +29,9 @@
 \itemize{
 \item Use default base \code{kable()} (Or a good alternative for markdown tables is
 \code{pander::pander()}) for all simple tables
-\item Use \code{kable()} with \code{kableExtra} to generate 90 % of complex/advanced
+\item Use \code{kable()} with \code{kableExtra} to generate 90 \% of complex/advanced
 tables in either HTML or LaTeX
-\item Only have to mess with raw HTML/LaTeX in the last 10% cases where
+\item Only have to mess with raw HTML/LaTeX in the last 10\% cases where
 \code{kableExtra} cannot solve the problem
 }
 
diff --git a/man/kable_as_image.Rd b/man/kable_as_image.Rd
index e28247a..d127e5e 100644
--- a/man/kable_as_image.Rd
+++ b/man/kable_as_image.Rd
@@ -4,9 +4,15 @@
 \alias{kable_as_image}
 \title{Deprecated}
 \usage{
-kable_as_image(kable_input, filename = NULL, file_format = "png",
-  latex_header_includes = NULL, keep_pdf = FALSE, density = 300,
-  keep_tex = FALSE)
+kable_as_image(
+  kable_input,
+  filename = NULL,
+  file_format = "png",
+  latex_header_includes = NULL,
+  keep_pdf = FALSE,
+  density = 300,
+  keep_tex = FALSE
+)
 }
 \arguments{
 \item{kable_input}{Raw LaTeX code to generate a table. It doesn't have to
@@ -21,9 +27,9 @@
 
 \item{latex_header_includes}{A character vector of extra LaTeX header stuff.
 Each element is a row. You can have things like
-\code{c("\\\\usepackage{threeparttable}", "\\\\usepackage{icons}")}  You could
+\code{c("\\\\\\\\usepackage{threeparttable}", "\\\\\\\\usepackage{icons}")}  You could
 probably add your language package here if you use non-English text in your
-table, such as \code{\\\\usepackage[magyar]{babel}}.}
+table, such as \verb{\\\\\\\\usepackage[magyar]\{babel\}}.}
 
 \item{keep_pdf}{A T/F option to control if the mid-way standalone pdf should
 be kept. Default is \code{FALSE}.}
@@ -37,18 +43,3 @@
 \description{
 deprecated
 }
-\examples{
-\dontrun{
-library(kableExtra)
-
-kable(mtcars[1:5, ], "html") \%>\%
-  kable_styling("striped") \%>\%
-  row_spec(1, color = "red") \%>\%
-  save_kable("inst/test.pdf")
-
-kable(mtcars, "latex", booktabs = T) \%>\%
-kable_styling(latex_options = c("striped", "scale_down")) \%>\%
-row_spec(1, color = "red") \%>\%
-as_image()
-}
-}
diff --git a/man/kable_styling.Rd b/man/kable_styling.Rd
index ee6de44..f21be79 100644
--- a/man/kable_styling.Rd
+++ b/man/kable_styling.Rd
@@ -4,14 +4,24 @@
 \alias{kable_styling}
 \title{HTML table attributes}
 \usage{
-kable_styling(kable_input, bootstrap_options = "basic",
-  latex_options = "basic", full_width = NULL, position = "center",
-  font_size = NULL, row_label_position = "l",
+kable_styling(
+  kable_input,
+  bootstrap_options = "basic",
+  latex_options = "basic",
+  full_width = NULL,
+  position = "center",
+  font_size = NULL,
+  row_label_position = "l",
   repeat_header_text = "\\\\textit{(continued)}",
   repeat_header_method = c("append", "replace"),
-  repeat_header_continued = FALSE, stripe_color = "gray!6",
-  stripe_index = NULL, latex_table_env = NULL, protect_latex = TRUE,
-  table.envir = "table", fixed_thead = FALSE)
+  repeat_header_continued = FALSE,
+  stripe_color = "gray!6",
+  stripe_index = NULL,
+  latex_table_env = NULL,
+  protect_latex = TRUE,
+  table.envir = "table",
+  fixed_thead = FALSE
+)
 }
 \arguments{
 \item{kable_input}{Output of \code{knitr::kable()} with \code{format} specified}
@@ -30,14 +40,14 @@
 table to the exact position. It is useful when the \code{LaTeX} table is contained
 in a \code{table} environment after you specified captions in \code{kable()}. It will
 force the table to stay in the position where it was created in the document.
-A stronger version: \code{HOLD_position} requires the \code{float} package and specifies \code{[H]}.
+A stronger version: \code{HOLD_position} requires the \code{float} package and specifies \verb{[H]}.
 \code{scale_down} is useful for super wide table. It will automatically adjust
 the table to page width. \code{repeat_header} in only meaningful in a longtable
 environment. It will let the header row repeat on every page in that long
 table.}
 
 \item{full_width}{A \code{TRUE} or \code{FALSE} variable controlling whether the HTML
-table should have 100\% width. Since HTML and pdf have different flavors on
+table should have 100\\% width. Since HTML and pdf have different flavors on
 the preferable format for \code{full_width}. If not specified, a HTML table will
 have full width by default but this option will be set to \code{FALSE} for a
 LaTeX table}
@@ -45,7 +55,7 @@
 \item{position}{A character string determining how to position the table
 on a page. Possible values include \code{left}, \code{center}, \code{right}, \code{float_left}
 and \code{float_right}. Please see the package doc site for demonstrations. For
-a \code{LaTeX} table, if \code{float_*} is selected, \code{LaTeX} package \code{wrapfig} will be
+a \code{LaTeX} table, if \verb{float_*} is selected, \code{LaTeX} package \code{wrapfig} will be
 imported.}
 
 \item{font_size}{A numeric input for table font size}
@@ -79,7 +89,7 @@
 
 \item{table.envir}{LaTeX floating table environment. \code{kable_style} will put
 a plain no-caption table in a \code{table} environment in order to center the
-table. You can specify this option to things like \code{table*} or \code{float*} based
+table. You can specify this option to things like \verb{table*} or \verb{float*} based
 on your need.}
 
 \item{fixed_thead}{HTML table option so table header row is fixed at top.
diff --git a/man/linebreak.Rd b/man/linebreak.Rd
index 01ab847..55adc0a 100644
--- a/man/linebreak.Rd
+++ b/man/linebreak.Rd
@@ -4,8 +4,7 @@
 \alias{linebreak}
 \title{Make linebreak in LaTeX Table cells}
 \usage{
-linebreak(x, align = c("l", "c", "r"), double_escape = F,
-  linebreaker = "\\n")
+linebreak(x, align = c("l", "c", "r"), double_escape = F, linebreaker = "\\n")
 }
 \arguments{
 \item{x}{A character vector}
@@ -15,7 +14,7 @@
 \item{double_escape}{Whether special character should be double escaped.
 Default is FALSE.}
 
-\item{linebreaker}{Symbol for linebreaks to replace. Default is \code{\\n}.}
+\item{linebreaker}{Symbol for linebreaks to replace. Default is \verb{\\\\n}.}
 }
 \description{
 This function generate LaTeX code of \code{makecell} so that users
diff --git a/man/reexports.Rd b/man/reexports.Rd
index 87b7db4..69a8477 100644
--- a/man/reexports.Rd
+++ b/man/reexports.Rd
@@ -14,6 +14,6 @@
 \describe{
   \item{knitr}{\code{\link[knitr]{kable}}}
 
-  \item{magrittr}{\code{\link[magrittr]{\%>\%}}}
+  \item{magrittr}{\code{\link[magrittr:pipe]{\%>\%}}}
 }}
 
diff --git a/man/remove_column.Rd b/man/remove_column.Rd
new file mode 100644
index 0000000..ead768f
--- /dev/null
+++ b/man/remove_column.Rd
@@ -0,0 +1,20 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/remove_column.R
+\name{remove_column}
+\alias{remove_column}
+\title{Remove columns}
+\usage{
+remove_column(kable_input, columns)
+}
+\arguments{
+\item{kable_input}{Output of \code{\link[knitr:kable]{knitr::kable()}} with format specified}
+
+\item{columns}{A numeric value or vector indicating in which column(s) rows
+need to be removed}
+}
+\description{
+Remove columns
+}
+\examples{
+remove_column(kable(mtcars), 1)
+}
diff --git a/man/row_spec.Rd b/man/row_spec.Rd
index c65aede..09f61a2 100644
--- a/man/row_spec.Rd
+++ b/man/row_spec.Rd
@@ -4,11 +4,23 @@
 \alias{row_spec}
 \title{Specify the look of the selected row}
 \usage{
-row_spec(kable_input, row, bold = FALSE, italic = FALSE,
-  monospace = FALSE, underline = FALSE, strikeout = FALSE,
-  color = NULL, background = NULL, align = NULL, font_size = NULL,
-  angle = NULL, extra_css = NULL, hline_after = FALSE,
-  extra_latex_after = NULL)
+row_spec(
+  kable_input,
+  row,
+  bold = FALSE,
+  italic = FALSE,
+  monospace = FALSE,
+  underline = FALSE,
+  strikeout = FALSE,
+  color = NULL,
+  background = NULL,
+  align = NULL,
+  font_size = NULL,
+  angle = NULL,
+  extra_css = NULL,
+  hline_after = FALSE,
+  extra_latex_after = NULL
+)
 }
 \arguments{
 \item{kable_input}{Output of \code{knitr::kable()} with \code{format} specified}
diff --git a/man/save_kable.Rd b/man/save_kable.Rd
index 562ac79..76c144c 100644
--- a/man/save_kable.Rd
+++ b/man/save_kable.Rd
@@ -4,9 +4,16 @@
 \alias{save_kable}
 \title{Save kable to files}
 \usage{
-save_kable(x, file, bs_theme = "simplex", self_contained = TRUE,
-  extra_dependencies = NULL, ..., latex_header_includes = NULL,
-  keep_tex = FALSE)
+save_kable(
+  x,
+  file,
+  bs_theme = "simplex",
+  self_contained = TRUE,
+  extra_dependencies = NULL,
+  ...,
+  latex_header_includes = NULL,
+  keep_tex = FALSE
+)
 }
 \arguments{
 \item{x}{A piece of HTML code for tables, usually generated by kable and
@@ -21,16 +28,16 @@
 \item{self_contained}{Will the files be self-contained?}
 
 \item{extra_dependencies}{Additional HTML dependencies. For example,
-\code{list(}}
+\verb{list(}}
 
 \item{...}{Additional variables being passed to \code{webshot::webshot}. This
 is for HTML only.}
 
 \item{latex_header_includes}{A character vector of extra LaTeX header stuff.
 Each element is a row. You can have things like
-\code{c("\\\\usepackage{threeparttable}", "\\\\usepackage{icons}")}  You could
+\code{c("\\\\\\\\usepackage{threeparttable}", "\\\\\\\\usepackage{icons}")}  You could
 probably add your language package here if you use non-English text in your
-table, such as \code{\\\\usepackage[magyar]{babel}}.}
+table, such as \verb{\\\\\\\\usepackage[magyar]\{babel\}}.}
 
 \item{keep_tex}{A T/F option to control if the latex file that is initially created
 should be kept. Default is \code{FALSE}.}
@@ -38,3 +45,13 @@
 \description{
 Save kable to files
 }
+\examples{
+\dontrun{
+library(kableExtra)
+
+kable(mtcars[1:5, ], "html") \%>\%
+  kable_styling("striped") \%>\%
+  row_spec(1, color = "red") \%>\%
+  save_kable("inst/test.pdf")
+}
+}
diff --git a/man/scroll_box.Rd b/man/scroll_box.Rd
index 5d4b3af..65f385d 100644
--- a/man/scroll_box.Rd
+++ b/man/scroll_box.Rd
@@ -4,9 +4,14 @@
 \alias{scroll_box}
 \title{Put a HTML table into a scrollable box}
 \usage{
-scroll_box(kable_input, height = NULL, width = NULL,
-  box_css = "border: 1px solid #ddd; padding: 5px; ", extra_css = NULL,
-  fixed_thead = TRUE)
+scroll_box(
+  kable_input,
+  height = NULL,
+  width = NULL,
+  box_css = "border: 1px solid #ddd; padding: 5px; ",
+  extra_css = NULL,
+  fixed_thead = TRUE
+)
 }
 \arguments{
 \item{kable_input}{A HTML kable object}
diff --git a/man/spec_color.Rd b/man/spec_color.Rd
index 539b623..74cdd1d 100644
--- a/man/spec_color.Rd
+++ b/man/spec_color.Rd
@@ -4,8 +4,16 @@
 \alias{spec_color}
 \title{Generate viridis Color code for continuous values}
 \usage{
-spec_color(x, alpha = 1, begin = 0, end = 1, direction = 1,
-  option = "D", na_color = "#BBBBBB", scale_from = NULL)
+spec_color(
+  x,
+  alpha = 1,
+  begin = 0,
+  end = 1,
+  direction = 1,
+  option = "D",
+  na_color = "#BBBBBB",
+  scale_from = NULL
+)
 }
 \arguments{
 \item{x}{continuous vectors of values}
diff --git a/man/spec_font_size.Rd b/man/spec_font_size.Rd
index cdd7465..7d6cea3 100644
--- a/man/spec_font_size.Rd
+++ b/man/spec_font_size.Rd
@@ -4,8 +4,7 @@
 \alias{spec_font_size}
 \title{Generate common font size for continuous values}
 \usage{
-spec_font_size(x, begin = 8, end = 16, na_font_size = 12,
-  scale_from = NULL)
+spec_font_size(x, begin = 8, end = 16, na_font_size = 12, scale_from = NULL)
 }
 \arguments{
 \item{x}{continuous vectors of values}
diff --git a/man/spec_popover.Rd b/man/spec_popover.Rd
index c9565d7..e182f59 100644
--- a/man/spec_popover.Rd
+++ b/man/spec_popover.Rd
@@ -4,8 +4,12 @@
 \alias{spec_popover}
 \title{Setup bootstrap popover}
 \usage{
-spec_popover(content = NULL, title = NULL, trigger = "hover",
-  position = "right")
+spec_popover(
+  content = NULL,
+  title = NULL,
+  trigger = "hover",
+  position = "right"
+)
 }
 \arguments{
 \item{content}{content for pop-over message}
diff --git a/man/usepackage_latex.Rd b/man/usepackage_latex.Rd
index ab2e09c..91daccd 100644
--- a/man/usepackage_latex.Rd
+++ b/man/usepackage_latex.Rd
@@ -12,7 +12,7 @@
 \item{options}{The LaTeX options for the package}
 }
 \description{
-Load a LaTeX package using R code. Just like \code{\\usepackage{}}
+Load a LaTeX package using R code. Just like \verb{\\\\usepackage\{\}}
 in LaTeX
 }
 \examples{
diff --git a/vignettes/awesome_table_in_pdf.Rmd b/vignettes/awesome_table_in_pdf.Rmd
index 257deb6..4ca2a84 100644
--- a/vignettes/awesome_table_in_pdf.Rmd
+++ b/vignettes/awesome_table_in_pdf.Rmd
@@ -78,7 +78,7 @@
 If you are using a recent version of rmarkdown, you are recommended to load this package entirely via `library(kableExtra)` or `require(kableExtra)` because this package will load all necessary LaTeX packages, such as `booktabs` or `multirow`, for you automatically. Note that, if you are calling functions from `kableExtra` via `kableExtra::kable_styling()` or if you put `library(kableExtra)` in a separate R file that is **sourced** by the rmarkdown document, these packages won't be loaded. Furthermore, you can suppress this auto-loading behavior by setting a global option `kableExtra.latex.load_packages` to be `FALSE` before you load `kableExtra`.
 
 ```{r, eval = FALSE}
-# Not evaluated. Ilustration purpose
+# Not evaluated. Illustration purpose
 options(kableExtra.latex.load_packages = FALSE)
 library(kableExtra)
 ```