VideoTrack1 is , sort of base video clip. Video Track2 is added to overlay short video clips. Video Track2 has a few clips at 2:00 and 4:00 mark.
Now I want to insert a short video 20 seconds long in the VideoTrack1, let's say at 1:00 mark.
At the 1:00 mark, I did "Split" in the Video Track1. but I realized that short videos of VideoTrack 2 was not moved by 20 seconds.
I wanted to insert 20 seconds by the new short video in the sequence, not just the Video Track1. In other words, I expect short videos of Video Track2 now at 2:20 and 4:20 automatically.
I hope it clear.