[BNW] Help regarding merging Modpacks

[cosmonster]

Please excuse me if this is not the right place for this question, it's my first time posting here.

Is it possible to merge two or more modpacks? If so how do I do that? I've been googling and googling for an answer for, like, months now lol. My question is specifically about merging EUI with a modpack I made myself to use in multiplayer. I'm sorry if that's a stupid question/one with an obvious answer but I have for the life of me found nothing about this on the internet and I'm getting desperate.

Thanks in advance! :]

Moderator Action: Moved from tech support to C&C. The_J