Hi @Aleque ,
here, selected MIDI are displayed in red on the piano roll no matter the colour of the part (Cubase 15.0.20 Win 11). Which Cubase version and OS are you on? I am not sure if there’s a preference setting, I haven’t changed anything.
Have you tried Retrospective Recording?
After pasting the recorded part to the current position you could zoom into the piano roll: Hover over the left side of the piano roll until you see a 4-arrow icon. Left click with your mouse and hold: Drag your mouse to the right and you zoom in, to the left will zoom out. Up and down will move the piano roll (same applies to the In-Place Editor in the project window. Here, you can simply enlarge your track vertically and you’ll have a much bigger piano roll by nature).
You could listen to your take and stop at a position near the piano roll every time you hear something interesting.
I know, it’s not what you are asking for. It’s just a practical workaround. HTH