>When using a Menu on a top level form, use of 'THIS.' or 'THISFORM.' anywhere in the MENU COMMANDS or Procedures generates an error. How is it that you are to control things on a TOP-LEVEL form via a menu when FORM Object references like THISFORM. are not allowed?

you can't use THISFORM because the menu is not an object that exists somewhere inside of the containership of the form.

Use "_SCREEN.ACTIVEFORM" instead.