Hello Michael,
fast and competent help - as always. It doesn't get any better than this. Thank you!
-Moritz

You can also change the size of the handles, which may be helpful in seeing them on high dpi screens, the default is 24 (I think)

EditFrameGripPixelSize=36

Again 0 to 255 I assume.

Useful question and nice answer guys,.

Hello MarkBTomlinson,
thank you very much for your advice. Really very helpful. I also have set the size to "36" and it´s very comfortable to work with.
Many thanks for that
-Moritz

Welcome! Glad to help.