Currently, InControl2 allows creating VLANs with limited DHCP settings. However, the more detailed settings must be adjusted in the router’s interface directly. Moreover, a fix applied in a previous bug report (Ability to configure InControl2 VLAN settings (such as the DHCP) - #4 by mldowling) seems to have disabled the synchronization of the basic DHCP settings between the router’s interface and InControl2, so that whenever a change is made in one it is not reflected in the other.
Ideally, all detailed VLAN/DHCP settings should be available in both interfaces – the router’s built-in management/configuration page, and InControl2. Otherwise, it just creates confusion and the unnecessary need to switch back and forth between both websites. (The reason I have to continue using InControl2 is because this is the only place where I can configure users for Captive Portals, otherwise I would do everything from the router’s interface which is more powerful and more user friendly).