AP1101 DHCP Server

Hello,
I’m using in an installation some Stellar AP1101s with firmware version 4.0.8. I read in the OmniAccess Stellar AP User Guide that you can set the controller as a dhcp server but I can’t find the options shown in the screenshots anywhere in the Web UI. Is the DHCP option only available in some models and not the AP1101 or am I missing something I should do to get the option?
Thank you

Never mind, I just realised that there are to management pages one of which is called AP UI where you can configure the services like DHCP, DNS and NAT and which is accessed by clicking the IP address link of th AP in the AP configuration page in the main Management interface.