Wow that is pretty cool. Microformats2 are different type of metadata than RDFa in that mf2 use existing classes rather than properties: https://indieweb.org/RDFa but they can exist together. I checked out the “add metadata menu” Is there a way to add additional classes similar to CSS?
I don’t think we’ll be adding Microformats2. RDFa serves our purposes and adding classes to the HTML would would add some bloat to already busy class declarations (since we used Bootstrap). ~Craig