"HW rulez" mod (add-on) for HoMM3.

I don't remember seeing those options available.

So, buttons on the exchange screen – for swapping armies (swapping on the unit tab, or on the spacebar for artifacts, for example – would be useful if they weren't already assigned) and for moving specific stacks back and forth – also need to be added. Ideally, customizable hotkeys for everything would be great.