- clientName: name of the client (required)
- type: (optional) Type of the group setting (can be used to identify the places where it should be used)
- var: (optional) Name of the group setting.
- All variable names, values and group setting types of a group setting in an associative array or false if the client is in no group. ($out[$i]['var'], $out[$i]['val'], $out[$i]['type'])