I covered up the one step because I realized that when I made the sequence, I was thinking of a school bathroom where you open the door and then go wash hands. Well, at home you wash your hands and THEN open the door. Why did we include the door at all? It's called bare butt running down the hallway. In hindsight, the covered step would be flushing.
I think the chocolate bar sealed the deal. He seemed very enthusiastic about peeing in the potty today! Hopefully this makes him more likely to initiate going on his own.
If you don't have Boardmaker or have a younger kiddo, then you can make a sequence using actual photos instead of symbols.