Folks
I was trying to implement a recursive DNS instead of forwarder. So, I made a firmware image adding full odhcp instead of ip6only and deleting dnsmasq but adding unbound and relevant apps.
It all appears to be working predictably except that the Network >> DHCP and DNS menu items appears to have gone into hiding. So now I don't know how to use luci to add the static lease.
Any suggestions would be appreciated.