hahahaha that last part was so funny, Yes, I think we are saying the same but you are considering like if I was saying that the bungeecord server was an actual minecraft server. I just add it on the list cause it's an actual server (a proxy server, as you say a door to the others servers).
Yes that would be very nice to join all the chats, I think I could search for one plugin as that or create my own plugin. I will add that feature of ON and OFF. I think there it must be some chat manager that does that already though. ^^
Thanks again for your reply. ^^