a week ago
The pack comes with a new dictionary type cm_storage.snapmirror_metrocluster. It really does not depend on metrocluster functionality, it just adds a few fields to the regular snapmirror dictionary. Unfortunately, it has not been updated past OCUM 6.2. You can fix it by going to Designer->Cache Queries and cloning the snapmirror_metrocluster entry. In your copy, check the boxes on Unified Manager 6.3, 6.4, 7.0 and 7.1. Then go to Execution->Data Sources and reset the cm_storage schema.
I spoke too soon. My SE told me to upgrade to WFA 4.1, which I just did. After upgrading I went through your steps again and this time the fields populated. I have yet test it but that will be the next step.