I would like the ability to more easily group and ungroup my party. I can do it manually by dragging the character's portraits and "breaking the chain" that holds them together and then reforming them by manually moving the portraits together, but because my own play style is stealth-focused, where I get each character into position before initiating combat, it would make the gameplay more enjoyable for me if it was easier to group / ungroup.
When grouped and hiding, the NPCs seem to try to maintain a box formation. This is...sub-optimal. One or more of my characters often ends up crouch walking in plain site of an enemy and activating combat.