[Feature Request] Show monitor numbers / visually show current monitor <-> layout selection

Hi, my question might be related to #367 , as the title includes "Show the monitor numbers", but it has been technically resolved by adding the names and I want to add another suggestion to it, which is not related.

**Context**: I have 2 exact same monitors => their names are identical, which makes the layout selection a guess basically. Please see the attached image below.

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**Feature proposal**: Would it be possible to add a monitor number alongside the name when selecting layout <-> monitor mapping?
Alternatively, it would be nice to lightly illuminate, frame, pulse... the monitor screen that the layout is currently being selected for. Example -> Hover over a layout in the layout selection as seen in the image below.

=> the corresponding screen would be illuminated for a brief moment or would display some sort of a frame, so that I can see for which screen am I selecting the layout for.
Thank you!