That was a novel idea .. to use screenshots for your video. Glad you have got your head round this program for making videos that you have found. I have done a video using it and have put up step by step instructions on what I did as I went along. It's here:
It's all about the music ♫ ♪ ♫ Organ: Yamaha AR80 & Keyboard: Tyros 4 .. Challenge Winner 2021 May (Joint Winner); July; September 2022 July; August 2023 April; June; September