1. Make Categories collapsable by default in the admin so the sub categories only show once you've clicked on the parent category. This needs to work on all the admin pages, e.g Products > Product Category page and also when adding / editing a product etc.
2. We need to have two dropdown options, the first is to select the Woocommerce category (car make) and the second is to select the sub category of the parent category. The sub category will only show the items from within the main category that was selected.
For example, you select the main category (car make) as 'Ford' and the sub category (Car model) will display a list of Fords (Ford Fiesta, Ford Focus etc.).
We need to use this on several pages so it'd need to be code that we can easily reuse (a shortcode would be great).
Please message me for more information