Questions about stacking

I’m currently giving a stab at my first prototype module for a game I’m working on, the problem I’m having, is I’d like two pieces in a hex, say one side on the left, the other on the right. I know it can be done with stacking, but having to double-click to open the stack before moving them away is a bit of a pain. Is there any way to have stacks auto ‘open’ or is there a way to offset pieces based on the players side?