Select a type in the Type drop-down list box. The type is based on the target. For example, if the target is Diagrams, the type could be IDEF0, DFD Gane & Sarson, OMT Object Model, or any other diagram to which you have access.
If the target is Definitions, the type could be Access Path, ICOM Arrow, Dependent Entity, or any other definition to which you have access.