Need help to set up academy/party

Hi, so i am playing on a reborn server and people do reborns and join academy. The frustrating part is they join your party but not academy, aka leeching plvl.
Is there a way to filter party invites to accept only people who already are joined in my academy?

I am not that technical so simper explanations/solutions are appreciated.

Regards,
Maxi

Set pas. Academy. Tab Otpions

The problem is not the academy, entry but rather the party. I want to be able only people within my academy to join the party