Would be nice to have an inventory for all the bee cages.
It gets a bit messy when breeding all the species (I have a chest full of cages and I have to hover over them to figure out what they are), so having some sort of storage to display the cages according to species would be nice.
It could be 2 slots for every species for breeding purposes, but then again not all species can selfbreed.

Forgive me if there is a way to filter them already.

I have something half done already from a month ago, but it requires a lot of GUI coding which I hate doing.

understandable, but its good that you have something half done 👍