Navigate to the backend of Shopify -> Online Store -> Pages -> Add Page -> linked it to page.collection-listing
MANUALLY put the Exact (case sensitive), Exact Collection Name and separate each collection with comma, put comma for every collection you want to display.
For Example: Casual, Going Out, Party + Celebration, Rompers + Jumpsuits, Mini, Midi + Maxi
Here's the link url of the page: https://demo.shoptimized.net/pages/dresses
TAGS: page-list, page-collection, collection lists, collections list, page collection, page list, subset, feature a subset of collections on a page, subset of collections, collections on a page