1. I record my fingers playing the piano - main video with sound 3 minutes long!
2. I record audience in 3 different clips of 3-5 seconds
3. I want to insert little clips but do not want to loose synchronized main video of my fingers with sound.
4. Q. How to keep the basic clips stay at their place in the time line wile you insert the extra clips?

<> = clips insert audience --- = time line main video / my fingers on the piano