All we can do for now with facet is select them, but it could be useful if we can exclude them in the search results, using for example a checkbox on the right of the facet ?
*** Bug 28756 has been marked as a duplicate of this bug. ***
I would find this a useful feature and it would help save time in viewing results. Normally we would want in search results (on Catalogue in KOHA Staff interface) to see Books and Ebooks. We would not want to see ILL Journals, ILL Ebooks, On Order. as none of those are available to borrow. Tick boxes beside each item would help to determine what to include/exclude.
I am not sure a checkbox would be clear enough, but maybe we could come up with an icon/visual that could work. Also when clicked, we could maybe display as "NOT xxx" or so, so it's clear to the user what happened.