[quote=@Vec]
Is there a way to mention every member of an RP with just one mention? Like in the case of announcements, is there anything similar to a @everyone like on discord? I think this would be rather easy to implement, right?

Cause in RPs with a lot of members, mentioning everyone gets a little bit tedious.
[/quote]

i don't think that would be all that easy. roleplays don't usually keep track of their members within the code; there's not even a "roleplay members" system.