You can filter the user list in the chat and show only (custom) friends of current user in it with the help of our WordPress filter named iflychat_get_user_friends_filter.
Here is sample code to do this:
function my_custom_friends_filter($friends) {
/** Get current user information **/
global $current_user;
get_currentuserinfo();
/** Get friend list of the current user with the help of your custom function
* It will be an array containing friends id like array('2','5','7')
*/
// $friends = get_friend_list($current_user->ID);
return $friends;
}
add_filter('iflychat_get_user_friends_filter', 'my_custom_friends_filter');
