Hi guys !
Another idea I had once (but I think I never did talk about it here) was to be able to instantiate frames.

The idea here is to have a “special” copy/paste option for frames, which would instantiate them.
That means that if you have several instances of a frame (eg. you’ve made a walk cycle that comes back several times in your animations), editing an instance of a frame would make that edit occurs in every instance.

Eg.

• walk cycle is from frame 19 -> 25
• I select those frames and make an instance copy
• “original” frames have their color changed (=instanciated)
  when the frames are pasted (48->54), they got that same color too
• Editing frame 48 would edit frame 19 (and other instances) at the same time
• + : option to “break” an instance (and get the frame color back)
• + highligh all its instances when selecting a frame in the timeline
• + allow reverse pasting

What do you think about that ?

Related to : #243
Forum post : http://www.pencil2d.org/forums/topic/feature-request-instantiate-frames/