Improvements to updated structures in Mcreator 2023.4!

As many already know, in the latest Mcreator snapshots 2023.4, the structures (the element itself) were redesigned, now the structures have become truly real! And now you don't have to lock and create structure files manually yourself. But this element still needs a couple of changes: FIRSTLY, there are structures in Minecraft in which mobs are generated (this can also be found in files) (sorry, there will be no code, since I forgot how it looks in MC 1.20.1+), Secondly, I would like a little more tools for creating composite structures (multiple jigsaw structures in one) Maybe it's worth publishing on github :D