You're right, I even had it at some point but decided to remove it to simplify the UI since not many levels seemed to need it. But you're not the first one to comment about it so maybe I was wrong...
I love backwards solving the “crab” way, but it is also very useful to solve forward. Maybe you could dynamically hide the forward-solving elements of the UI if the level doesn’t need it, but also let the player take control over it just in case i want to do something you didn’t expect.
