Here's the next video - Using the Advanced Grid Maker to design multi-strand turk's heads. It's 9 minutes long, which is a bit more acceptable than the 18 minute introduction one! I will endeavour to keep videos shorter by trying not to cover too much in each one. Anyway, here's the link -
https://www.youtube.com/watch?v=8jEz2vRJ2C8&feature=youtu.be