During a combat it is hard to tell which of these units have already attacked but can still move and which are yet to attack (you can see by selecting them that the attack icon is still white, but that involves clicking each one in turn). Can we have an overlay icon that tells us that they finished attacking but can still move please?

Agree, it could be show with icon on the unit card or on the battlefield as is done with effects such as under fortification or have the defence mode on.

This would be awesome. It would remove something tedious for players picking huns, mongols, garamantes etc..