Genius tip!
To split an existing clip in the timeline and insert new footage at that point, drag it from the top-left pane and across the existing clip. When the desired point for the split is shown at the top-right, let go and choose Insert.
To split an existing clip in the timeline and insert new footage at that point, drag it from the top-left pane and across the existing clip. When the desired point for the split is shown at the top-right, let go and choose Insert.