Chat downloader is a mod to add the command /chatdownload with which can download the whole chat in your current session into a .txt file that is placed into your existing profile, this would be mainly used for youtube videos or general content to point out messages in chat. The /chatdownload does the same but only saves text from a user in your current session.
Commands
/chatdownload
/chatdownload
Placement
C:\Users\USER\AppData\Roaming\ModrinthApp\profiles\mrpack\chatdumps
