User (Superuser, Normal, Viewer) have the option to set the window buttons to “Never combine”.

As a result, user will have a clearer view what windows are currently opened and a more comfortable usability in navigating the window buttons.

 

Previously, the window buttons are always combined.

If you opened 4 detail views, notice that the Details window buttons are combined together.

If you opened 3 operation tasks, notice that the Operation window button are combined together.

The disadvantage of this is user lacks clear view of what windows are opened