Notes and text boxes:
TsrvActionInsertFootnote inserts a footnote.
TsrvActionInsertEndnote inserts an endnote.
TsrvActionInsertSidenote inserts a sidenote (a note in a floating box).
TsrvActionInsertTextBox inserts a text box item.
TsrvActionEditNote starts editing a note or a text box.
TsrvActionReturnToNote moves the caret to the parent note.