Auto delete messages for Chats

It would be nice to have auto delete messages for Chats so our clients can send us one-time read messages or messages valid (offers) for x days. This could be useful not only when an Agency manage clients with fCommunity too.

I think I posted this idea on a Roadmap but I don't see it (only 15 items are visible there as new) and there are no email confirmation that the idea was submitted (user was being logged to fBoards/fCommunity).