Is it possible to add more mods to something like Grimmest/Catatlysm?

Hello,

I do like Grimmest as It is not that well balanced as Catatlysm (too bad those two are not working together tho :C ) but Catatlysm monsters are too sparse, is it possible to install mod that increases number of hero monsters as it is in Grimmest?

fire up the modding tools

inspect the files

grimmest should be a fairly safe merge with many existing mods