It would be nice to have the ability to add objects into the animation, these objects are not about how to render animation, but would be great for easy of code. e.g. I can set an object on top of a character's head, and when this character gets a buff or whatever effects, this object will act as an place holder for the specific buff animation. Currently I get around with special prefixed image names, this works so far, but object would be neat instead. It is a similar idea in the Tiled map editor, where you set object as place holder which are great help for program to use them on the fly. Haven't read previous replies, sorry if it's a duplicate.