[Link: custommediasolutions.com]This emulator shows a T3 with what I called PopUp menus. It was done before I ever did a 2-way system, so there were a lot of pages to simulate the popups. Some menus appear as "popups", some were set on different pages.
To simplify page creation I used screen captures of the main pages as backgrounds for the popup overlays. Some backgrounds would be set behind a "dimmer" to highlight the popup buttons (ie: mode buttons in music library).
I was pleased with the final outcome, and the client said it was the easiest remote he ever used. That may have been true without all the fancy graphics, though.