How to get Both internal sound and external sound simultaneously for pubg streaming

I bought asus rog 2 only for streaming.
But it's only recording either internal or external mic.
How can we achieve like poco f1, vivo z1pro , oppo, one plus 7t models.
1
This discussion has been closed.
Comments
This request has already been forwarded to our devs before but I will remind them with your post. Thanks!
Any update for this request?
I vote for this too. I think this feature will be very useful for most of game streamer out there especially for popular multiplayer game with in-game voice chat like PUBG Mobile, Free Fire Battlegrounds, Mobile Legends, etc.