Please take a look - even if domain-name selected, auto-completion continues to show this option and auto completes it:

[RHEVM shell (connected)]# create vm 
cluster-id                         description                        expect                             os-boot                            placement_policy-affinity          template-name
cluster-name                       disks-clone                        high_availability-enabled          os-cmdline                         placement_policy-host-id           timezone
correlation_id                     display-allow_reconnect            high_availability-priority         os-initRd                          placement_policy-host-name         type
cpu-topology-cores                 display-monitors                   memory                             os-kernel                          quota-id                           usb-enabled
cpu-topology-sockets               display-type                       name                               os-type                            stateless                          usb-type
custom_properties-custom_property  domain-name                        origin                             payloads-payload                   template-id                        
[RHEVM shell (connected)]# create vm --domain-name 
cluster-id                         description                        expect                             os-boot                            placement_policy-affinity          template-name
cluster-name                       disks-clone                        high_availability-enabled          os-cmdline                         placement_policy-host-id           timezone
correlation_id                     display-allow_reconnect            high_availability-priority         os-initRd                          placement_policy-host-name         type
cpu-topology-cores                 display-monitors                   memory                             os-kernel                          quota-id                           usb-enabled
cpu-topology-sockets               display-type                       name                               os-type                            stateless                          usb-type
custom_properties-custom_property  domain-name                        origin                             payloads-payload                   template-id                        
[RHEVM shell (connected)]# create vm --domain-name --domain-name 
cluster-id                         description                        expect                             os-boot                            placement_policy-affinity          template-name
cluster-name                       disks-clone                        high_availability-enabled          os-cmdline                         placement_policy-host-id           timezone
correlation_id                     display-allow_reconnect            high_availability-priority         os-initRd                          placement_policy-host-name         type
cpu-topology-cores                 display-monitors                   memory                             os-kernel                          quota-id                           usb-enabled
cpu-topology-sockets               display-type                       name                               os-type                            stateless                          usb-type
custom_properties-custom_property  domain-name                        origin                             payloads-payload                   template-id                        
[RHEVM shell (connected)]# create vm --domain-name --domain-name 


Version-Release number of selected component (if applicable):
rhevm-sdk-3.1.0.8-1.el6ev.noarch
rhevm-cli-3.1.0.12-1.el6ev.noarch