Selection of products within sub menus

I'm new to HikaShop - so apologies for dumb question.

I have multiple brands (A,B,C, ...) and multiple product categories (X,Y,Z,...). A brand can have products in several of the categories. I have a menu to let the user choose a brand, and submenu items for each brand to select the relevant categories. Selecting the brand menu item shows all the products for the brand, but then selecting a category submenu item shows products of that category for all brands, not just for the previously selected brand. How do I get the submenu to select products of the desired category from within the chosen brand only?

I have HikaShop Starter. I think Filters are only in Business, so I will get that and see what I can achieve. Thank you for the pointer.