This might be an odd question but I just had this idea
Q: Is there some way to collectively keep track of 'plans' made up by the collective in a given chat group?
Say we're three in a group-chat, we decide to do x thing on y date a month from now - is there some application that's designed for this scenario? Wouldn't it basically have to be part of the chat-program to not pose a security risk? Have you ever used a chat program that has this function?