Created attachment 157554 [details]
Display arrange ambiguity

SUMMARY
I think the images attached show better than I can ever word it however the issues, with reference to the obvious ambiguity shown in the images are:

- Changing monitor arrangement is trial and error because there is no way to tell one monitor from the other.

- Changing monitor priority can look like you didn't even change the order because the monitors are identical.

What needs to happen for this to be fixed:

1. The description of the monitors needs to contain a unique number or name.

2. The description of the monitors needs to contain the priority now that has been added as a priority list and the priority list needs to show the unique number or name for the monitors.

3. For large numbers of monitors like this it is desirable that when you click on "Identity" that the numbers say up until you click to remove them. 2-3 seconds up is not nearly enough to be useful. Also, the 30+ character description could be replaced with something like a single fixed number for the display and perhaps another number showing it's priority - something more useful to digest.

4. Ideally you could right-click on one of the monitor images that you use to arrange them to set which one is primary. And, by extension set other attributes that way.

Finally, there is an additional issue that sometimes moving a monitor or changing some other parameter will cause all the monitors to pop to the same resolution which ends up being lower than any of their native maximum resolutions which is usually undesirable. If it's going to pop to some default it would be highly desirable to make it the maximum/native resolution of the monitors rather than some arbitrary lower resolution default. This would make this particular bug essentially transparent to almost all users since the default would be what is desirable.

STEPS TO REPRODUCE
1. You just need a bunch of identical monitors
2. 
3. 

OBSERVED RESULT
See images

EXPECTED RESULT
Being able to tell the which is which

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Tumbleweed
KDE Plasma Version: 5.27.3
KDE Frameworks Version: 
Qt Version: 

ADDITIONAL INFORMATION