efef8a201a
This PR makes it easier to delete strip keyframes from the preview. It works similarly to the 3D viewport and also works with keying sets. Pressing "alt + I" deletes the keyframe on the current frame of the selected strips, when a keyset is active it only deletes the keyframes of the selected keyset. Pull Request: https://projects.blender.org/blender/blender/pulls/140385