so when you guys say animations, do you mean custom ones for the game? or like slide shows made in the studio. I've always been confused how that works, like if i download a scene all i can do is view it in the studio cause it's just pictures, not an actual 3d scene.
Think of the "animations" or "scenes" as a script telling each characters where and when to move within a room. With a script you can put different actors to fill the roles, but the lines and actions done are the same. It's a little oversimplified, but it should get you the general idea. Koikatsu works like a 3D modeling software between their 'Character Maker' and 'Character Studio'. The instructions aren't tied to the model, so it's super easy to swap the character out. The problem being that every character model can have differences like height, weight, hair, clothes, etc, so the animation might need small tweaks. An example being if you load an animation of two characters kissing. When you swap to different characters and they have different heights, obviously the mouths won't be lined up. So alot of the work people do is realigning the models for their characters to fit the animation movements.
Koikatsu scenes are actual 3D scenes that you can free roam the camera within Character Studio. Granted if you don't have all the exact same modes whoever made the scene, somethings might break when you load it. To get the actual animations you have to have the timeline mod to my knowledge.