Hello, I bought the Corporate version of freichat, i did a custom installation. I want to make a small modification, I hope you can help me. :) My users are divided into groups, in the users table I have: Id, Username, Group (1 or 3) Only two group type (1 or 3) My intention is... Group 1 can chat with everyone is online, but Group 3 only can chat with Group 1. For Group 3 only visible online group 1 people. And modify the style, maybe a different background color on the panel of active users for each group. How can I do? That files, queries should I change. Thank you!!