Learn how to trim during playback with the extend edit command as well as other quick and easy shortcuts. Shortcut References: shift + x = extend edit (edit during playback, dynamic) ; and ' = go to prev and next edit [ and ] and \ = selects the type of trim operation (single roller, dual roller) , and . = nudging 1 frame (use shift to x10 the change) option and [ = top edit option and ] = tail edit command + b = add edit (cut) t = only really used for slip and slide (not changing durations) x = selects range between 2 cuts