Please can somebody tell me how to edit saves through hex editor so I can hire/add units? I can edit stats of existing hired units but I cant add/hire units to roster as it will always corrupt save and make it unusable. What I would like to do is for example add halberdiers from the beginning of the game or if some unit is lost during battle, I want to be able to add them. Is there some functional how-to/to-do list somewhere?

Thank you very much.