Thanks for your post Micha. Yeah, Alt+R will restart the level, but you still have to step through the level instructions -- although notice they play back faster after the first run-through! We considered doing something such as what you described, but our experience was that many players didn't read the instructions or tips; so if the player was failing a level because they missed an important suggestion, we didn't want it to be too easy for them to skip over the tips.
Thanks again for your suggestion. Hope you're enjoying the game!

Dave