You access this page by clicking on any of your media.
Go back to the previous page
This icon allows you to view tags in the picture. They will appear as annotated boxes (these are tags inside the picture, not tags associated to the picture in it's entirety). Clicking here will open a dropdown window with four options:
Download the media
Open the share window. In this new window there is an eye icon that allows you to set the permissions for the viewer: