1) it worked! thank you
2) actually it’s not subcategories separated from categories… I’ll elaborate better, sorry. It’s something like this:
Category1 field title (dropdown)
sub1
sub2
Category2 field title (multiselect)
sub1
sub2
It’s like having 2 separated fields.
3) If that’s not possible, could it be with custom taxonomy? Can I create a new taxonomy field and add it to the filter?