Automatic tagging of review papers?
I often want to find only review papers in my (very large) library. It appears that PubMed (at least) tags them somehow, because on every PubMed record there's a link that gives me related reviews; and journal websites often flag reviews in some way. Is it feasible to have Zotero use that information to automatically assign a 'Review' tag to review papers? I try to remember to assign such a tag manually, but sometimes I forget. Thanks!
If you find an interesting "review" article and it is newly added to PubMed, it may or may not yet have been assigned a publication type. Thus, it will be impossible for Zotero to use the (then) available PubMed metadata as the trigger for that tag.
There are published studies of the assignment of articles to the review (systematic review) publication type. See the discussion of selection criteria section on the overall Cochrane website. While PubMed indexers get it right most of the time, it seems that there isn't a firm basis for assignment of that publication type.
All of that said, I like and endorse your idea.
I wouldn't get my hopes up, and instead rely on my own intuitions about whether something is a review or not.