"CellMerge" is a front end token that merges the selected cells into one cell.

"CellTagsEditDialog" is a front end token that opens the Edit Cell Tags dialog.

"CellUngroup" is a front end token that ungroups selected cells.

"ClearCellOptions" is a front end token that removes all explicit option settings for a cell.

"Clear" is a front end token that deletes a selection without copying it to the clipboard.

"CloseAll" is a front end token that closes all open documents and palettes.

"Close" is a front end token that closes the input notebook.

"ColorSelectorDialog" is a front end token that opens the Color dialog.

"CompleteSelection" is a front end token that opens a popup menu to complete a partially typed word.

"CreateCounterBoxDialog" is a front end token that opens the Create Automatic Numbering Object dialog box.