Adding other designers items to my collection

Discussion Forums Store Management
1

How do I add a fellow designer/storekeeper’s item to a Collection of mine? I know we used to be able to do this. Can we still do this? 

Thank you! 

2

Possibly this…
https://community.zazzle.com/t5/share-your-tips-tricks/how-can-i-add-your-product-to-my-collection/m-p/34066#M485