I dont think it can and i also agree with the vsphere tags.
We wanted to remove as much reliance on vcenter as possible so we started to create custom properties with in vrops using the rest API and it is so good.
All you do is create the property (or multiple) and add a value and you can use this in reports or as custom group membership rules.
here is a link to how to create them. There may be better posts out there but this is the first that came up for me
Creating Custom Properties in vROPs – Kloud Konnect
One thing to remember if you do start using custom properties is that you cannot currently delete a property once it is created. Also create a folder to put them in as it makes the property page cleaner
Below is an example of ours in a folder that we uses for our automated deployments (this is at cluster level but we also use them at CDC level s well
