how do i make a new keyframe that is a duplicate of the previous frame?

so i just got the trial version of harmony premium and im trying to figure out how to make a frame that is a copy of the frame before it,isn’t that how you animate deformer rigs?

plz help :frowning:

Move the time-slider (red bar) to your desired frame - hit F5.
http://docs.toonboom.com/help/harmony-12-2/premium/timing/extend-exposure-previous-drawing.html?Highlight=extend%20exposure