UI to allow user to set, outside of movement phase, that a unit is in depth 1/2/3+

This could be annoying because the options are: • stop a user from leaving movement before inputing whether they are in water or not or otherwise require a user to input terrain every turn even though 95% it's going to be 'not water'. This would also kill the ability to backfill movement info during attack declaration, when it seems to make the most sense for the player. • Allow a user to go back to movement phase and note water with the chance that they fall and have to clear any attack resolution. For newer players this could be very disruptive as the a failed PSR in movement could effect how the whole movement phase cashed out, let alone attacks. • create a new and separate set of movement controls where mode, distance and terrain is right in front of the user, that'll need to pop over the sheet and where details (mode/distance/terrain) can be toggled and the the whole thing 'accepted'. This'll turn what's currently a touch and drag into a context switch and three taps for every turn.... bleh.