A wiki is actually a quite nice idea. I created an account at wikia.com and was going to add a new section for How To’s which may contain quick answers to simple questions someone might have. But apparently I didn’t had the permission todo so, so I’ve just added a plain page with some quick how to’s I encountered when working with the system. These things took me quite a while to solve on my own due to the interlaced nature of the system. Unfortunately I did so before looking into your video which would show me, that you covered already some parts of the stuff I just wrote down 
Anyway, since watching videos can be quite lengthy, (specially if you just want to make some simple change) I believe it might be a good idea to keep this. At least I prefer some searchable documentation over skipping through hours of videos to find the one thing I’d like to know right now. If you think it’s obsolete you may of course just delete it.