Sub Servers inside of Normal Servers

People might think this maybe a copycat of a Different Platform "Guilded", but i'm sure this is going to be a good addition to the discord platform.

Add Sub-Server groups to servers so that if servers don't want to have a cramped style of a server, they'll be able to make groups inside of it where people can put stuff like games, communities, roleplays, etc. into any of the "Sub Groups" they choose.
Image above for example if needed, yes I made a screenshot from Guilded because it's the only example i can see it from.