Viewport minimizes or goes away when editing in other windows


I dragged my viewport to another screen so i can always see my ingame shot on one screen while working on materials or blueprints.
However the moment you click on another window the viewport disappears.

You then need to click on the map or top level to see your viewport again.

Is there something i can do to keep it onscreen?

I was also looking for such an option, but there doesn’t seem to be one (also in the AnswerHub).

A workaround is to keep editor windows as separate windows, instead of as tabs next to the main one. However, this is certainly not optimal for me, as it takes much more effort to switch between them. And they also clutter my windows taskbar.

Anyone with a suggestion?