RHEV: impossible change of DNS Settings after coupling it with RHEVM

Hello,

I'm evalutating rhev in my testing enviroment. I have dhcp serving this subnet. Dhcp only sends public DNS address, both rhev and rhevm uses private domain under another dns that i usually specify manually. 

After having RHEV coupled with RHEVM, DNS settings are unchangeable both from the rhev console and rhevm . I'm only allowed to change IP mode (dhcp or static) and ip/netmask if using static.

Even using static addressing, it is impossible to change DNS settings.

Is there a way to get control of this field again?

Thanks