Extra fields show when not available

Extra fields show when not available


Regarding the demo,

Fields like brand always show in left menubar even when there is no brand product available.
So when there are 20 brands in the menubar list and you click a lot of them and there will show no products in the list because there are none from that brand in the classifieds database it's kinda uncovenient.

Is there a way to only show that brands in the menu from classifieds that are available in the category where one is browsing or show a countnumber after each brand?

Thank you.