- Add a quick army exchange feature for heroes within a town...;
Not only in the town, but also in garrisons and on mines.
- Change the focus of the "OK" buttons in the exchange window so that the right button leaves the focus on the left hero, and the left button on the right hero.
Two 'Check' buttons in Swap Manager = 0
Regarding the quick transfer of troops, it's natural that clicking on the arrow under a unit will leave that same unit with the hero.