Link to your individual collections by creating a new linklist in the Navigation section of the admin.
You can then have it appear here by choosing your new linklist under Customize Theme / Sidebar.
Item Type: Changing Pads & Covers
Brand Name: yrdhk
Age Range: 0-3 months
Age Range: 4-6 months
Age Range: 7-9 months
Age Range: 10-12 months
Model Number: yi070