Grouping users in public channels

Hi all, is there a way to group users together in channels? For example: when I add a new public channel I’d like to immediately include all members on my server. Now I have to add them one by one. Is there a quick way to add them all? Thank you.

good question, i’d like to know too. i manually added all our users to a channel then made that channel default so any new users logging in would auto join the channel