The starting left side panel that shows all the supported command is quite useful for someone that is learning. However, it's either blocked by the demo screen at the start. Or it would be cleared every time a tutorial is chosen, and it doesn't show up at all when ?NODEMO is added. I think you might want to move that to the right, or move the starting tutorial/demo screen to not block that panel.
I already learnt a lot, but could have done with more help, not always clear what is expected (rampup3) and no way to see the solution... i got stuck on rampup3 a bit frustrated