Feature Request: Whisper Chat Channel for all Private Messages to the Dungeon Master (DM) / Game Master (GM)

We run a D&D game on our Discord Server and I would like to have one chat channel where players could enter comments but only be able to read their comments and those from the Dungeon Master (DM) (which would be a specific role or users). Currently I have not found that this is possible; if it is please let me know how to do it.

I tried to create a channel where players only had 'Send Messages' permission but not 'Read Messages'. So they could send messages that the DM could see. However, since removing the 'Read Messages' permission removes the channel from their view they are unable to enter it to send a message. Is there a way around that?

I want a way for players to be able to pass messages to the Dungeon Master like at the table and have the DM only need to monitor one chat channel instead of multiple private messages from other players. It would also allow him to keep a record of those messages in one place and read them chronologically.

If this isn't possible, how can I submit this as an enhancement request and get community support behind it?

Thank you for your time and consideration.