I’ve just noticed that I can no longer access the See Also and Classify function with a Mellel document in DTPO. I believe it was possible in the past, but it has been a while since I tried. Does this depend on the Quicklook Plugin?
I just tried this with a freshly-made Mellel document imported to the Global Inbox, and See Also and Classify worked just fine. Suggested destinations, suggested similar documents.
What version of Mellel did you use? I am using Mellel 4.1.4.