Does this sentence make any sense, or is it just a way to list various commands?
You're right it's a ridiculous sentence, deleted now.
I heard it as a command from a passenger in a car trying to help quickly.
Yes. Edrychwch is the command form and corresponds to the polite chi form. The familiar ti form is edrycha.
I hope it get's replaced with something more meaningful but still using a list of commands. Something like "look right, look left, go" could be used for crossing the road, etc.