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

I will implement the confirmation of digging with the D button.

I selectively set a resolution from my own numbers that are not in the list; the game launches in windowed mode, and when I press F4, it displays:
"Full screen mode is not available at resolution XXX"

As it should be, and which is perfectly logical. The list contains resolutions supported by your monitor; therefore, if your monitor does not support, say, a resolution of 999x999, the game will not be able to force it to work in that mode. However, the game will still be available in a window.

I am not going to eliminate the WT (Wild Things) creatures. The HD mod will not introduce any changes to the original gameplay. I may start working on my own gameplay mod, but it will be a separate project (if it even happens), and it will not be an attempt to create another online competitive mod. Although, it will not be specifically designed for single-player only either.

I will think about the quick key combinations. I will make them even more similar to those in The Elder Scrolls/Witcher, make it an optional feature to choose a The Elder Scrolls/Witcher-like style, or make them customizable.