Have two custom post types (Store and Product) in WordPress website. Need to be able to filter Products by Product_Taxonomy when creating/editing Store. Product_Taxonomy and Products are to be presented in dropdown boxes. Products will be filtered when Product_Taxonomy item is selected. User can then select a Product from dropdown which will be added to post. When Store is updated the Product in dropdown should be selected when Edit Store page loads. The filter will be within a custom Metabox on Store Custom Post Type page.
Update: The custom post types and pages are already created and functioning. I just need to be able to filter and select a single product when creating/updating a Store. I have added a screen shot of how it should appear in a meta box on the Store Post Type page but have not been able to get mine to function.