>Got it! Now I understand. Thanks.

That's only the beginning, of course. You still need to make sure the references in the array are nulled when the form is released, optionally to check if a form is already in the array (you may simply hide the forms when not in use, and show them instead of running them afresh, to gain some speed, and only kill them all when exiting the app), and generally do some maintenance of the array. Once done with it all, you got your forms manager.