On my site, I have a Countries field on the user profile, and I would like to give users the option to choose between two options: from Japan or not from Japan.
In Views, I did this using a grouped filter:
Now I am trying to make a facet that does the same thing. However, I don't think this is possible from the Facet UI, even with Facet API Bonus installed. There appears to be no way to provide users with the choice of A or NOT A for a facet that has 100+ values.
How can I implement this A or NOT A search using the Facet API for a specific facet?