thanks for the suggestion! one of the goals of Bitsy is to keep things constrained, which is the reason I limited animations to 2 frames. it makes it so you don't have to worry too much about getting super detailed. for those reasons I don't see this happening soon. (that said, I want Bitsy to be useful so if it seems like this constraint causes many people problems I would reconsider.) also, do you mind telling me what you wanted to animate that needed more than 2 frames? it's helpful to understand what people's goals are.