About how to search

Hi @Tomtom ,

You can use binary total which can act as OR

For example in article collection you have properties for #A and #B (2 properties), then add another property which is binary total, so if this article only related to #A, fill this binary total with 10, if it also related to #B, put 11 instead.
If only related to #B, not to #A, put 1, if not related to any of that, put 0.

So you can have filter here, if you want either of them, just choose 10 or 1.

For additional information, check this out

and also this one,