Thanks for the feedback. 1) you can press any key to show rest of the text quickly. (not exactly on a flash always) 2) I considered adding a sandbox view on t

Thanks for the feedback. 1) you can press any key to show rest of the text quickly. (not exactly on a flash always) 2) I considered adding a sandbox view on the same page so that user could make herself comfortable but decided against it, as I wanted to keep things simple. So this kind of restricted command set in the actual tutorial might be a nice solution; I haven't done it yet since it makes the flow non-linear; I might make the tutorial more interactive in other aspects, but it needs still thinking. Good point, anyway.