Change which Window opens first at start

General
1

I have a simple application that started with just one Window, but specs changed and I had to add three more Windows to the application one of which is supposed to be the main for accessing the others. But I can’t for the life of me figure out how to tell the IDE to use that Window when I run the application. Is it possible? Used to be in RealBASIC (that’s how long it’s been…)

2

Select the App object in the navigator (Left)
Change the DefaultWindow property in the inspector (Right)

3

you can also set it there to none and open any window in the app open event.

4

Thank you!