Hi. I assume that a player cannot change the height of an ATST once the game has started. Is there a written rule for this?

(Asking because the ATST is adjustable. )

Thanks.

I don't think there is specifically a rule against this, just like there might not specifically be a rule against smashing your opponent's AT-ST with a rock if they tried something like this.

The assembly instructions for the game instruct you to glue them together. Thus, the rest of the rules presume that your models cannot change their shape during play. It's fine if you choose not to use glue for hobby purposes, but you definitely are not allowed to modify your models during the game.

Makes sense. Thanks!