"Above"

"Above" is a front end token that creates an OverscriptBox and fills the base with the current selection.

This token is equivalent to the menu command Edit Expression Input Above.

"Above" will fill the base with the sub-expression to the left of the selection if it is an insertion point.

To execute a front end token, you typically evaluate a command of the form FrontEndExecute[FrontEndToken[token]].