"ExplainBeepDialog" is a front end token that opens the Why the Beep? dialog with an explanation of why the front end produced a beep.
"FindEvaluatingCell" is a front end token that finds the currently evaluating cell.
Import
(Mathematica Front End Token) "Import" is a front end token that opens the Insert File dialog.
"InsertMatchingBraces" is a front end token that inserts a pair of matched braces at the insertion point.
"InsertMatchingBrackets" is a front end token that inserts a pair of matched brackets at the insertion point.
"InsertMatchingParentheses" is a front end token that inserts a pair of matched parentheses at the insertion point.
"InsertObject" is a front end token that opens the Insert Object dialog.
"MakeSelectionNotSpan" is a front end token that makes the selection not span a matrix.
"MakeSelectionSpan" is a front end token that makes the selection span a matrix.
"NewColumn" is a front end token that adds a new column after the insertion point.