If you want to create internal metadata, you can do it in two ways:

Figure 28.1. Creating Internal Metadata in the Outline Pane

Figure 28.2. Creating Internal Metadata in the Graph Editor

In both cases, after selecting the New metadata item, a new submenu appears. There you can select the way how to define metadata.

Now you have three possibilities for either case mentioned above: If you want to define metadata yourself, you must select the User defined item or, if you want to extract metadata from a file, you must select the Extract from flat file or Extract from xls(x) file items, if you want to extract metadata from a database, you must select the Extract from database item. This way, you can only create internal metadata.

If you define metadata using the context menu, they are assigned to the edge as soon as they have been created.