Restrict conversations between spark clients

a pleasure to welcome all the community …

I am working with the openfire and the client spark … I need when I create a group with clients and customers with an administrator user, it can talk to normal users, but users can not talk

eg
1 user - admin

User 2

User 3

1 user can talk to the 2 and 3

2 and 3 but can not speak to each other …

I hope that I can work thank you very much for your attention

If I understand you correctly, the “Packet Filter” plugin should be able to do what you want.