How do I make my Collections private?
Go to the page for your Collection and click the Edit icon on your Collection.
Under the Privacy section click the slider so it is set to the right and orange. Then click the Save button underneath. To make your Collection public again, click the slider so that it becomes grey and click Save.
What does Private mean on Mix?
When a Collection is private it is not visible to other users or to anyone with a link except you. The pages within the Collection will still be on the Mix site and will be recommended to other users but your Collection will not be linked to it.