Feature request : Onion Skin Pro

Currently , onion skin can only handle keyframes (wiki.synfig.org/wiki/Onion_Skin),
it would be nice to have a pro version of onion which can handle each frame or at least each waypoint.

take a look at toonboom’s
vtc.com/products/ToonBoomStu … wing/91081

Yes but always in the limits of have tree past and three future onion skin maximum. Onion skin takes a lot of time to render.