Select multiple devices and delete all custom notes (not fixture callouts) attached to them.
The "Match Device Label Locations" command can add many callouts at once, but there does not seem to be a way to easily delete multiple callouts.
This would be especially useful when adding lights to a circuit that already contains lights. Running “Draw Homerun And Loops" would erase a lot of my work, so I usually delete all the circuit callouts manually before drawing loops manually.
If this feature already exists, please make it easier to find.