HoMM3 HD is a mod (add-on) for the game Heroes of Might and Magic 3.

I think having a hotkey for the market is not a feature that should be made optional. Don't need it? Just do it the old way: find the city and click your way to the market... Don't want to quickly swap armies? Please, move the mouse back and forth... I also don't see the point in saving every day at the beginning and end. It would be more useful to create replays according to the method proposed by Wicc. However, the ability to roll back more than 1 day is a useful feature for glitches like unit duplication, and also for single-player.