Chat History Merging

So like if a lot of people from a server channel(or a group) are stopping to use that channel and go to the other one like no one sits in general, everyone goes to the gaming chat or etc and so there's no need for the previous channel that got forgotten you can merge the history of 2 channels(or groups) in one so there will be the history of the first and the second channel combined(but it will be marked that it is from other channel) so you wont forget all the good memories you got from the other channel