Probably would need a timer/callback running then updates after mesh changes/etc. But that could get complicated/maybe too buggy.
Thank you, I worked hard to create this addon.
@lostidolsco unfortunatelly the blender devs did not add objects/collections picker for python strings. There is even rightclick select feature request which is very old.
Do you want to select a collection through a viewport? An object which is in a collection? If yes then I can suppose it’s possible.
@Kickflipkid687 Yeah it would be buggy. (( I would like to create a realtime tool too.