Reply To: Advice regarding this shop (attributes, child/undercategories etc.)

Hello,

The breadcrumbs are the functionality of Woocommerce.

The Product category widget has the option to show parent and child categories and other options. Please check Appearance > Widgets. Shop page widget area: https://xtemos.com/docs-topic/widgets-and-sidebars/

This manual contains instructions on how to show the filter widgets.

If you still have difficulties, please provide more details and insert the site admin access into the Private content below the message area

We would recommend creating a testing site and uploading our demo. Then you will be easily configure the site as per your needs.

Best Regards