I basically had the same question as well posted in another part of the forum, and have had no response, but in looking around I cant see how this can be done other than maybe using the example that 7Soul has posted. I was trying to look for another way to do my project and maybe have the same effect. This is what I have come up with. Its just a basic switch between layers but could be useful and could look real nice maybe a tabbed look put to it instead of using buttons like I did. Doing it this way it is like having various windows keeping all of the content within the same event sheets being used. The only draw back to it would be cant have 2 windows showing at once.
The demo: https://www.sfegaming.com/c2/tabbedpanel/
The download of project example: https://www.sfegaming.com/c2/tabbedzip/
I have also come up with another way of using layers to display information on the current screen instead of having to switch between layouts of full screen.