Lights inside Instance collections

[Nickonimus]

Many users, include me, use instanced collections in Blender instead of common groups, but for now Gaffar Light lister can't recognize lights inside those instances, so if it possible, please make Gaffer able to adjust them.

[gregzaal]

Due to the way that collections and collection instances work in Blender, this is not very trivial to implement without significant performance hits (iterating over every object for every draw call). I haven't heard anyone else asking for this, but maybe if you can explain your use case I can see if there's a way to pull it off?