"CreateIndexDialog"

"CreateIndexDialog" is a front end token that opens the Make Index dialog box.

This token is equivalent to the menu command Find Make Index.

When a cell has a cell tag, an entry is created in the index with that keyword and its corresponding page number(s). See Make Index... for more information.

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