How to display only child terms in second taxonomy filter?

How To
1

Hello!

I am building a car catalog and I need a structure like:

Brand > Model > Sub-model
(for example: BMW > 3 Series > 520i)

I created one hierarchical taxonomy where brands are parent terms and models/sub-models are child terms.

I am using two separate filters in Bricks Filter Builder:

  1. the first filter should show only brands (top-level terms)

  2. the second filter should show only models/sub-models (child terms), without any parent terms

The issue:
In Bricks I cannot hide parent terms in the second filter.
There is an option to hide child terms, but no option to hide parent terms.
So the brand still appears together with its models, which breaks the filtering logic.

My question:
Is there any way in Bricks to show only child terms in the second filter and exclude all parent terms?
Or is this currently not supported?

Or maybe I am approaching this incorrectly and there is a recommended method to achieve ā€œBrand > Model > Sub-modelā€ filtering?

Iā€™ve already spent several days trying different solutions (hooks, query filters, conditional logic), but I still cannot achieve this.

Any guidance would be greatly appreciated.

Thank you!