Thanks for the feedback mshine69, it's much appreciated! I really like the idea of linking to previous lessons or a website to get extra help when you need it.
Sorry you found the moveable chords section confusing! To clarify on why that topic is there, they are very popular shapes, often used in preference to full barre chords because they're easier to play and sound less big and boomy, so they suit certain songs and styles. Also, in terms of technique they're a great stepping stone between moveable power chord shapes and full barre chord shapes, because they use most of the full barre shape, but without the extra difficulty of using a full 5-string or 6-string index finger barre.
In the video at the start of the mission I spoke quite a bit about muting unused strings (it's the second half of the video), did you find that it was difficult to understand? Or maybe there was too much to take in at once, so it was hard to remember that by the time you were practicing the chords in the following exercises, and needed a reminder?
Re the 7th chord shapes, I agree that the barre 7ths are more difficult with the internal notes held with the index finger. That's why those shapes are at the end of the later mission on full barre chords, but in checking out the 7th shapes in the moveable chords mission I've realised that there are some fingering mistakes that make these chords seem much more difficult than they really are. I'm really sorry about that, I'll get them fixed asap.
Thanks also for your feedback requesting longer videos with more explanation. I looked through the guitar missions and couldn't see any scales which didn't have the name written there, but maybe it's hard to read or confusing, so I'll try to find ways to make that clearer. Maybe some text on screen while you're playing the scale?
Sorry that you don't get what Yousician is trying to teach you! If you'd like to have a more detailed chat please feel free to DM me and we'll line it up.