How to add a network interface to an oVirt vm

Using ivanchuk-2 with oVirt 4.3.6 infra

I don’t understand how to add a network interface to an oVirt vm.

When going to
Compute > Infrastructure > Virtual Machines > VMs > MyVm
Then : “Reconfigure this VM” ==> The section “Network Adapters” is not present

I can add new nics to VMs on vCenter infrastructure, but not to those on oVirt