Valery, Conquistador's towns building mod has limit of X faction wins to get an ability to build a town.
Mines building script allows to build mines for gathering X wins per hero.

I don't know how to put into words but let's say, I've set 30 wins limit in Conquistador and 20 in Mines; I won 24 fights with a single hero and built a mine, then when I try to place a new mine it says I have 4 wins on that hero. But if I won 37 fights overall on all heroes, then build a town, all my wins disappear and counter goes from zero (though I've set limit of 30).

Any way to make it taking only 30 but not all the wins? Not to zero amount of wins but only to take amount I've set when game started.