The accelerator key sequence that activates the pop-up menu for a widget.
Data type: CHARACTER
Access: Readable/Writeable
Applies to: BROWSE widget, BUTTON widget, COMBO-BOX widget, DIALOG-BOX widget, EDITOR widget, FILL-IN widget, FRAME widget, RADIO-SET widget, SELECTION-LIST widget, SLIDER widget, TOGGLE-BOX widget, WINDOW widget
Any value you set must evaluate to a valid ABL key label, such as "a", "F1", or "ALT-SHIFT-F1".