A new related items panel has been created within all collection items to allow any collection item to link to another.
To display related items on the front-end of the site you would use a pbAdvRelatedCollection skintag.
Having related items across possibly many different types of collections (datalist, document, product, etc.) poses a potential issue where a skintag specific to a collection type is used. For example, using [Item.RetailPrice] would work fine in a...