For a node that can be connected to other nodes, there is a function that
allows you to call up a dialogue to add or remove other nodes from a list.
I would like to be able to call this dialogue and was wondering how I
could do so? Is this some kind of Editpolicy?
Also, as a matter of interest, as I understood it, this is a list of nodes
that are connected from a first node. Where there is a graphical
representation in the Diagram of this connection with the data also being
shown in the properties section. Why would you be able to just change the
data view and not the graphical view? My guess would be that this was
originally used in EMF where you could just add a link purley in terms of
data and that when it is done so with GMF the EMF function is also called.
But when done just with this linking the in the properties there is no GMF
function to apply the changes graphically?