Currently, when I search for a feature, I can choose to filter by the collection, tag, author, etc. But this is inclusive, meaning I can drill down into cards that are included in those filters. 

I need the ability to filter OUT. Ex: We synced our Guru with Zendesk, so we have over 1600 cards in Guru that are synced in from our Help Center. When I want to look for only internal content, I have no way of searching all collections EXCEPT our synced-in Help Center. 

It would be great to have a toggle that allows us to switch from filtering by inclusion to filtering by exclusion.