@stepasyuk For example, there is a parent filter #1 with Audi and Volkswagen radiobuttons. Also I want to set hidden child filters: #2 with (A4, A6, A8, RS6, etc. models) checkboxes and #3 with (Amarok, Arteon, Golf, Passat, etc. models) checkboxes.
So desired behavior is — when I choose an Audi radiobutton, only the filter #2 with (A4, A6, A8, RS6 models) checkboxes appears. When I choose a Volkswagen radiobutton, only the filter #3 appears and the filter #2 is hiding again.
I found an exact example https://dasparts.ca/parts/partslist?filterUrlParams=categories%3D