Sub-channel system on 1 channel

Hello, Discord! Want to make an offer to make Discord better.
For example, there is a voice channel on server. A lot of teammates plays Rainbow Six Siege and we using discord (all of us on 1 channel with limit of 5 persons)
Sometimes there's a lot of trash talk coming, even from your teammates.
Want to offer the possibility for discord users to make sub channel on voice channel:
i see it like this: Voice Channel: Rainbow Six, sub-channel: Team A, Team B.
For example if you want to voice chat only with your teammate on sub channel Team A - you push "Button 1", if you need to contact with team B, you press "Button 2". But all of your teammates on one channel, but separated by team A and team B, so there won't be any talk you don't need right at the moment in game and you will hear only your teammate. (if you need to give info in game to team B, press Button 2, if to your teammate in Team A, press Button 1)
I'll be waiting for your answer, and i think this will be a good idea for teamplayers in many games, to be on 1 channel but separated in 2, 3, 4 sub channels) Thank you.
P.S. Sorry if my english is bad, and hello from Russia)