DHCP-Reservation for existing DHCP-Server config

Question

Hello XG-Board, 
 i&acute;m looking for a way to setup some mac reservations on the sophos xg (SFOS 17.0.8 MR-8). I can&acute;t find the corresponding button unter Network->DHCP. I have two RED-Devices, but can&acute;t add any reservations when i edit the dhcp-server settings. When i click on the add-Button in the serverlist, i can insert mac reservations but not for an existing Server. How can i add a reservation without deleting the dhcp server from the list and start all over again? 
 >Thx for reading.

FloSupport · Accepted Answer

To update this thread for the community: 
 This MAC reservation issue affects automatically created DHCP server objects when you enable the DHCP from within the RED Interface > RED Network Settings > Configure DHCP. The window to configure this reservation is missing, however this does not affect manually created DHCP servers (which you can then associate to the RED interface). 
 I will be following up with our team regarding this. In the meantime, please PM me if you are affected by this issue. 
 Regards,