Arcane Enhancements are applied to an item by using the Arcane button at the bottom of the foundry. Arcanes can be applied to either a or Syandana. After an Arcane has reached Rank 1, meaning there is at least one Arcane Enhancement applied, it will move to the "Installed" tab where further Arcanes can be applied to the item. If you possess any Arcane Distillers you can also remove them from a given item on that tab. Arcane Distillers can be purchased from any Syndicate for 50,000 standing.