Is it possible to create mods?

For a single map, I doubt many people would bother installing a mod. If there were a campaign, that would be better. Although, of course, not many people are interested in "Heroes of Might and Magic IV" anymore. 2__VeT__,

Does the script with the growth increase in dwellings on Equinox work?

It is impossible to change the growth in external dwellings (this was also not possible in "The Succession Wars"). The script for increasing growth works correctly in creature dwellings in cities. It does not work correctly for decreasing growth.