Build upon existing Wordpress website

Hi there, I'm looking for someone to help me with two tasks on my Wordpress website that I don't have time to do myself. 1) WooCommerce products infinite scroll - I want the current pagination set up replaced with an infinite scroll type feature where products load as the user scrolls down the page. Perhaps using this plugin? [login to view URL] 2) Custom category page - currently when you click onto the "Products" page on my website the user is taken to a page which lists the three top category levels. This is great. But when a user clicks a top category, they then have to navigate through the 3 or 4 sub category levels before they get to the products. What I want to happen is the user clicks one of the three top level categories, and is then immediately displayed all the products within that top category (regardless of what subcategory they are in). There's a tab in the side bar for users that want to navigate through the subcategories and get more specific with their search. I haven't been able to find this feature in WooCommerce settings or in the form of a plugin so I imagine it'll need some custom coding. I look forward to hearing from anyone who's up for it! Thanks :)