3.1.4.14 Add Group to Group

When a higher-level entity indicates that the DirectPlay client SHOULD add a group to another group and the DirectPlay client has joined a game session, the DirectPlay client MUST format a DPSP_MSG_ADDSHORTCUTTOGROUP (section 2.2.13) packet with the ChildGroupID field set to the group ID of the child group to be added and the ParentGroupID field set to the group ID of the parent group in which to add the child group. If the Session.MulticastServer flag is set, the DirectPlay client MUST wrap the DPSP_MSG_ADDSHORTCUTTOGROUP message in a DPSP_MSG_ASK4MULTICAST message (section 2.2.14) and it MUST transmit the wrapped message to the game host. If the Session.MulticastServer flag is not set, the DirectPlay client MUST transmit the DPSP_MSG_ADDSHORTCUTTOGROUP message to each of the computers that are currently joined to the game session. There is no response expected to this message.