I have a website which basically advertises the adventure activities of my uncles travel agency. I wanted to try learn a bit about websites so I just took it on as a hobby. I use WordPress as the CMS and I bought an e-commerce theme to use for the site. The problem I am having is that if you look at the site I have two Categories - "Accommodation" and "Activities" and there are various sub-categories under each of the two categories. When you click on either Category on the menu bar of the site you will see a menu on the left hand side of the screen which lists every single category and sub-category that contains a product. I want this menu on the left to only display the subcategories of the category I have just clicked on. So if I click on "Accommodation" only the Accommodation subcategories will appear on the left and nothing from the "Activities" category to appear on the left menu. Likewise if I click on the "Activities" link - only the Activities sub-categories appear in the left menu and none of the "Accommodation" subcategories. I am looking for someone to amend my Word Press template with this change.