galatine66 on CurseForge wrote:

I would like to have a test for count of visible nameplates, the information is available via Blizzard's name plate API and it is used by other addons like EnemyGrid. I can't stress enough how useful this would be.

[It] would allow you to set a context for bars or bar groups based on how many targets are in field of view within the set nameplate range. Say you're a setting up an action priority list using notify bars (I do this), if you are setting up different rotations for different scenarios (single target, 2-3 target cleave, etc.) then you can have the visible bar group change based on how many targets are in range, assuming you set nameplate range to your max spell range.

Another example, healers could set up a bar group to list all the friendly targets in range, combined with other conditions like missing buffs.