541e2b3cdd
This pull request adds options to hide and show strips in the Sequencer Preview, using the same shortcuts. Included "Show/Hide" operators in the Strips menu of preview mode. It only works on strips that are visible in the preview at the current frame. The Unmute operator now shows all hidden strips in the preview at the current frame, since it's not possible to select hidden strips in sequencer preview. See video in PR description. Pull Request: https://projects.blender.org/blender/blender/pulls/137781