[xwiki-users] Workspaces and group management

Hi, For now owner can invite users to workspace. Is there any possibility to invite GROUPS? I need following scenario: - Main Wiki Group A, B, C - Workspace "One" invites Group A, B and denies Group C to see workspace "One" - I register a new user and add it to group A - This user AUTOMATICALLY gains access/invitation to workspace. - I delete user from the Group A and user is rejected by workspace "one" also automatically Is there any simple way to do this? Kind regards, Dmitry