A suggestion for helping you see things with fresh eyes -- read aloud. Seriously, shut your door, open up the app and read the instructions aloud and try to follow them. Note everything down that is missing or unclear (print the instructions and buy a red pen.) And really read aloud, whispering or mouthing isn't quite enough. It makes a difference to how you hear things.
Oh and p.s. that looks pretty damm good. I do research on visual programming, so I was interested to take a look at your conduit app (reminds me of toolbox) as well. I particularly like the comments you have attached to edges in the graph, sadly I literally thought I'd invented that idea this morning :-)
Thanks, and great suggestion about reading aloud, I'll give it a try. I'm pretty sure that the typical "computer manual" style of acronym-loaded, compressed run-on sentences is not a delight to the ear :)
Oh and p.s. that looks pretty damm good. I do research on visual programming, so I was interested to take a look at your conduit app (reminds me of toolbox) as well. I particularly like the comments you have attached to edges in the graph, sadly I literally thought I'd invented that idea this morning :-)