A user interface is provided. The user interface may include a first portion and a second portion. The first portion may contain one or more listings corresponding to one or more entities. The second portion may include an editable surface for viewing and editing the entities. A command to drag and drop a listing corresponding to a first entity from the first portion displaying the listing into the second portion displaying a second entity is received. In response to receiving the command to drag and drop the listing from the first portion into the second portion, a link to the first entity is inserted into the second entity.