Getting the stairs in place was a problem that I was already comfortable with solving. It is the same trick I used to get the pieces of text on the walls together. Though it took me a while to realize that was what I needed to do. Getting up the stairs was easy once I realized that the problem wasn't that I looked away while climbing the stairs. Climbing stairs like that makes absolutely no sense in real life, so it required some out of the box thinking, which is why it's my favorite puzzle.
One thing I missed was a run key. I tried using ctrl for that, but that was a mistake. Ctrl+w is a browser hotkey for closing your window. Though having tighter and shorter corridors as someone else mentioned, might be a better solution.