One of the biggest feature requests we get is having the ability to have a unique play drawing or text per keyframe or step in the play. It helps walk players through a more complex series of plays. Sports Dood apps up until now have always supported a single drawing per play. The below video illustrates the capability although likely not a very interesting play. You can see some drawing being added in mid animation play back. The process works the same as regular play creation, if you change or add new layers of drawings, they will be recorded to the keyframe.
One of the draw backs of this is that undo may not work as expected. Once you record a frame, that drawing becomes an image associated with that particular keyframe. As long as you continue to add frames, undo works as expected but if you go back to edit a frame, you will need to use the eraser to edit the drawing. We are making this process as seamless as possible.