I was mainly mentioning it because in that game you also have to split and merge armies pretty often and while you can manually do it, most of the time you press the split in half button once or several times to the sizes you need. Large stacks in Civ are actually somewhat similar so I think a similar feature would help. EU4 is a good game btw. I can recommend it to someone who likes C2C. The request for the feature was formulated somewhat rude (or rather it had a passive agressive tone). I don't care as I don't play C2C at the moment but it does sound useful for large army handling and I really would not like to manually split a stack of a hundred units. And when you said you would like the feature as well but do not know how to, I just wrote some pointers on how to. One thing: You should not feel pushed into doing requests or explaining yourself. That is not healthy modding and leads to burnout.