Hi Eugen -
I’ve put that on the list as RH-75238 Display: Dynamic Clipping Section
That was moved to Clipping Plane Widget.
On the list as RH-75239 Display: Shade selected clipping plane
That command is undergoing changes. I’ve added comments to RH-74387 (not public).
I’m afraid I don’t understand the question and how it is related to this topic.
-wim