Cubik Studio

cubik studio should be equiped with 2 new items a animation maker to easy create animated models frame by frame
alt modl creator a option in your model propeties to mark the model as a alterntive blokc model to a other block

Alternative blocks are an option in blockstate files and Cubik Studio exports models, not config files

The way Minecraft handles "animations" (animated textures only) is not a good way to create animated models. I'm not sure yet when Cubik Studio will implement such system.