AddUser | Adds a new user to the user group. | 
  RemoveUser | Removes a user from the user group. | 
  UsersList | A list of all members of the user group. | 
  Deleted | If true, the object is marked for deletion, but the deletion has not been committed. | 
  HideFilter | The data hiding filter for the entity specified by the FilterType parameter. | 
  ID | The user group ID. | 
  Is_System | Deprecated. Use IsSystem, which uses better error handling. | 
  IsSystem | Checks if the user group is a built-in system user group. | 
  Name | The user group name. | 
  Updated | Indicates if the object has been modified since being downloaded from database. |