diff --git a/R/ggkegg.R b/R/ggkegg.R
index 821bcaa..9c60ece 100644
--- a/R/ggkegg.R
+++ b/R/ggkegg.R
@@ -214,7 +214,8 @@ ggkegg <- function(pid,
 #' @examples
 #' if (require("clusterProfiler")) {
 #'     cp <- enrichKEGG(c("1029","4171"))
-#'     \dontrun{rawMap(list(cp,cp), pid="hsa04110")}
+#'     ## Multiple class object can be passed by list
+#'     rawMap(list(cp,cp), pid="hsa04110")
 #' }
 #' @return ggraph with overlaid KEGG map
 #' 
@@ -300,6 +301,7 @@ rawMap <- function(enrich, pathway_number=1, pid=NULL,
 #' typically, "gene", "ortholog", or "compound"
 #' @export
 #' @examples
+#' ## Colorize by passing the named vector of numeric values
 #' rv <- rawValue(c(1.1) |> setNames("hsa:6737"), 
 #'         man_graph=create_test_pathway())
 #' @return ggraph with overlaid KEGG map
diff --git a/R/highlight_functions.R b/R/highlight_functions.R
index 8abf980..a2c4e69 100644
--- a/R/highlight_functions.R
+++ b/R/highlight_functions.R
@@ -16,7 +16,12 @@
 #' @return boolean vector
 #' @examples
 #' graph <- create_test_pathway()
+#' ## Highlight set of nodes by specifying ID
 #' graph <- graph |> mutate(hl=highlight_set_nodes(c("hsa:51428")))
+#' 
+#' ## node column can be specified by `name` argument
+#' graph <- graph |> 
+#'     mutate(hl=highlight_set_nodes(c("DDX41"), name="graphics_name"))
 highlight_set_nodes <- function(set, how="all",
     name="name", sep=" ", no_sep=FALSE) {
     graph <- .G()
@@ -63,6 +68,10 @@ highlight_set_nodes <- function(set, how="all",
 #' @return boolean vector
 #' @examples
 #' graph <- create_test_pathway()
+#' 
+#' ## Specify edge column by `name`
+#' ## In this example, edges having `degradation` value in
+#' ## `subtype_name` column will be highlighted
 #' graph <- graph |> activate("edges") |>
 #'     mutate(hl=highlight_set_edges(c("degradation"), name="subtype_name"))
 #' 
@@ -110,6 +119,7 @@ highlight_set_edges <- function(set, how="all",
 #' @export
 #' @return boolean vector
 #' @examples
+#' ## Highlight module within the pathway
 #' graph <- create_test_pathway()
 #' mo <- create_test_module()
 #' graph <- graph |> highlight_module(mo)
diff --git a/man/highlight_module.Rd b/man/highlight_module.Rd
index 2e92bbb..6167b30 100644
--- a/man/highlight_module.Rd
+++ b/man/highlight_module.Rd
@@ -27,6 +27,7 @@ the same as KEGG mapper. For instance, `R04293` involved in `M00912`
 is not included in KGML of `ko01100`.
 }
 \examples{
+## Highlight module within the pathway
 graph <- create_test_pathway()
 mo <- create_test_module()
 graph <- graph |> highlight_module(mo)
diff --git a/man/highlight_set_edges.Rd b/man/highlight_set_edges.Rd
index 895b86b..14fd2c8 100644
--- a/man/highlight_set_edges.Rd
+++ b/man/highlight_set_edges.Rd
@@ -30,6 +30,10 @@ only return TRUE if all the IDs are in the query.
 }
 \examples{
 graph <- create_test_pathway()
+
+## Specify edge column by `name`
+## In this example, edges having `degradation` value in
+## `subtype_name` column will be highlighted
 graph <- graph |> activate("edges") |>
     mutate(hl=highlight_set_edges(c("degradation"), name="subtype_name"))
 
diff --git a/man/highlight_set_nodes.Rd b/man/highlight_set_nodes.Rd
index a20d493..0599f9d 100644
--- a/man/highlight_set_nodes.Rd
+++ b/man/highlight_set_nodes.Rd
@@ -30,5 +30,10 @@ only return TRUE if all the IDs are in the query.
 }
 \examples{
 graph <- create_test_pathway()
+## Highlight set of nodes by specifying ID
 graph <- graph |> mutate(hl=highlight_set_nodes(c("hsa:51428")))
+
+## node column can be specified by `name` argument
+graph <- graph |> 
+    mutate(hl=highlight_set_nodes(c("DDX41"), name="graphics_name"))
 }
diff --git a/man/rawMap.Rd b/man/rawMap.Rd
index 51d5930..ac9cfd1 100644
--- a/man/rawMap.Rd
+++ b/man/rawMap.Rd
@@ -38,6 +38,7 @@ enriched pathway. Can be used with the function such as
 \examples{
 if (require("clusterProfiler")) {
     cp <- enrichKEGG(c("1029","4171"))
-    \dontrun{rawMap(list(cp,cp), pid="hsa04110")}
+    ## Multiple class object can be passed by list
+    rawMap(list(cp,cp), pid="hsa04110")
 }
 }
diff --git a/man/rawValue.Rd b/man/rawValue.Rd
index d30426d..c8b1eed 100644
--- a/man/rawValue.Rd
+++ b/man/rawValue.Rd
@@ -42,6 +42,7 @@ return the ggplot object with raw KEGG map overlaid.
 Colors can be changed afterwards.
 }
 \examples{
+## Colorize by passing the named vector of numeric values
 rv <- rawValue(c(1.1) |> setNames("hsa:6737"), 
         man_graph=create_test_pathway())
 }