I don’t use the Schema Editor for schema changes to SPF; I hand-code the updates in XMLSpy. This is pretty straightforward when modelling the more common objects like Classes, Interfaces and Properties. But Graph and View definitions are a little trickier.
I deconstructed some existing Graph and View definitions in order to create some new ones manually; this blog shows what I learned. In this explanation I gloss over the usual stuff like relationships between the objects; it’s the syntax of the definition strings that I go into detail on. This is based on SPF 4.3.3.