How it works, you ask?

Really simple, when you hover over a video there is a nice little star icon, when you click on it, the video has been added to favorites.
All those saved videos are now showing under the new FAVORITES tab that is next to the "My Uploads" tab.

You can also add clips to favorites and select favorite clips, right from Media tab in the editor and select :

You can also notice that we made some design changes as well to the collection section, the titles are now on the video, and we have a new collection icon.
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Note: while you can 'favorite' video clips, this is not currently available for still images.