Thanks for that. I downloaded and installed the Desktop Github app, clicked on the Project File which brought me to another screen with a few lines of code on it then clicked the Screen icon which cloned all of the files to my hard drive. That’s given me the Project File and two folders. That’s a relief, I thought I was going to have to do that manually for every single file but it cloned the whole lot for me.
Now I can start messing around with Touch controls! 
Thanks again for the help!
Edit: Thought I’d also mention for those that aren’t aware that this bundle of fun includes hand models and animations for the thumbs up and pointing finger gestures too!