When filtering collections in the pulldown, as well as using advanced filters, it would be useful to be able to do an is-empty type filter for collections. This is similar to the “unmatched” filter, conceptually.
As for current solutions, I’m currently resigned to hunting down each title that I expect to be present, in order to add the label, and viewing the collection to validate. Filters for un-filled fields are great for finding gaps.
This request has already been addressed in another feature suggestion. I suggest you comment/vote in that thread in order to avoid distracting/dispersing the attention.
