By opening the Metadata popover panel with an asset selected you are able to modify the following information:

• Title
  The title of an asset is automatically pulled from the url (if dragged from a web browser) or the filename if imported from the Finder.
• Notes
  Notes about an asset can be included if sourcing information is important, or the status or client preference of an item is pertinent to the continued work on a mood board.
• Scale
  Drag the slider to control the scale of the asset in the Mood Board document space. Assets can be sized up to 200% of their original dimensions.
• Rotation
  Drag the slider to control the rotation of the asset in the assets local space.
• Flipping
  Easily flip the asset to provide symmetry or correct photographs taken in reflections.
• Masking
  Mask an asset to provide a better fit in your Mood Board collage.