Saw the improvements in 1.19, look nice, but I still think more work could be done in the UI department.
a) The casting on individual units in a stack is great , but there needs to be an option to cast the spell on multiple targets, unless this causes more problems then it solves, in which case- save it for later.
b ) There needs to be a clear way to handle grouping/splitting from groups. Some suggestions here:
b1) Caravans- Caravans should not be groupable with other units, but they shouldn't be attackable if there are other units in the stack. Units should be assignable to follow a caravan, always remaining in the same tile. (would solve the caravan problem I think)
b2) There needs to be a way to group/ungroup units in the same tile, and mouse clicking on a tile should never ungroup units. I've had too many champs/sovereigns suicide run out of their army into large armies from this.