A poll should be created. My opinion is as follows: there should always be at least two stacks – this will make Inferno more playable, as the early game is the most difficult. The percentage chance for a 2nd-level building to be constructed is a great idea – increase it in the Tower, Citadel, or Inferno to around 65%, or simply set it as the default for these castles (these three are weaker than the others, in my opinion). In the other castles, leave the chances as they are – so, when playing with the "Heroes of Might and Magic" rules, simply increase the chances for these castles. When the option is enabled, the chances will be the same for all castles. Hotkeys are interesting; we just need to choose the most optimal and convenient ones for a specific action. We need to test them ourselves before implementing them. Perhaps we can make them customizable? By the way, does the HD mod have a hotkey for swapping troops between two heroes? And are there buttons to transfer troops back and forth between stacks? I know everything else.