Delete animation frame.

For example, I have an animation of 30 frames. How can I remove the 10th frame?

only the 10th? Not sure.
you can make 2 copies, delete everything after the 9th in a, before the 9th in b, and edit a and b together i suppose …

Is it possible to ask the developers to add the ability to remove one frame?

surely. Try the feedback section :wink: