If you use Product list/details widget and products are available in your online shop, you can easily publish direct links to these products in chat or in comments.
All what you need to do is publish links to your products available in your online shop using "Present a link to this product via live chat" field. Don’t worry, it can be also any other website which is connected with the product you want to show in Product list widget.
When you publish your widget, the links will be immediately visible on Facebook or YouTube chat. If you need, just click "Publish product link" widget to show the links in comments mode anytime you want.
One more thing - when your stream will be finished, all the links to the products you presented, will be automatically added to your stream’s description. Remember, you can easily modify the description whenever you want.