I have been away from Roll20 (and RPGs in general) for several years. I am coming back to find a lot of great new features! One thing that is stumping me, however is the way one way walls work for dynamic lighting. I have a module created by Wizards, and ledges and stairs have a one way wall, to make it so players can see down the stairs, but they can not see back up the stairs, which is great! My issue; however, is that players cannot move their tokens up back up the stairs. Is there a way so that I can create a lighting wall that will prevent sight in one direction, but not hinder movement?