Feature suggestion: Ability to pin messages in chats

It would be nice to be able to pin messages in a chat. So I don’t have to scroll up and down to find a message I want to revisit.

Not just pinning messages (although this feature would be amazing), but pinning conversations and/or having a way to organise conversations by having folders where I can drag conversations into.
Currently it can get really messy trying to sift through conversations to look for a specific message that I remember having read a month ago. I find that the search function isn’t enough. Especially since I usually have multiple conversations per day

Also, an option to delete all chats, except the pinned chats.