Voice Channel Addition for Games

So we are playing many online board games on discord. Some games we play require 2 of us to be muted but they can talk to each other so they sometimes write stuff private. Or we mute the 2 people we are not supposed to hear. It would be really nice it there was a feature where you can create a sub-voice channel inside a voice channel where the people in the sub-channel can hear each other and the people in the primary voice channel but the the people in the primary voice channel cannot hear the people in the sub-voice channel.