OnTap vSIM OnTap Upgrade - HA?

Hello, I'm coding a WFA workflow that upgrades ontap on all nodes in a OT9+ cluster.  I'm trying to test via ontap simulator containing 2x non-HA nodes but Cluster Upgrade is erroring on HA.  I understand in the past HA on vSIMs was not possible due to difficulty of sharing the NVRAM file without some tricky and very dirty hacking.  Is this still the case?

I have already gone through the link below preparing the vSIM for ontap upgrade, and have completed upgrade successfully using traditional method of node reboot after setting default image.  I would prefer to code using the 1-click Cluster Upgrade though, if possible.

http://community.netapp.com/t5/Simulator-Discussions/Ontap-8-2-2-Simulator-available-or-can-I-upgrade-the-Ontap-8-2-1-Simulator-to-8/td-p/94763

Thanks!