There are two ways to show two forms on one screen: the first way is to dock one of the windows and the second way is to combine the two windows.
1. Dock window
You can dock a form using the context menu command (see screenshot 1). After that, all new forms will open in another part of the main screen (see screenshot 2).
For example, we want to look and compare two reports for different periods. Then we can place two forms side by side with the same report (See screenshots 3 — 6).
You can also combine completely different forms (see screenshot 7).