[news.eclipse.modeling.gmf] How to store my workflow model to this struc

[jiezi <jiezi506@xxxxxxxxx>]

I want to make a workflow designer by GMF,now the question is

(1)I want to get the *.XPDL structure as follows:
<package>
   <processes>
         <process1/>
                   <nodes>
                               <node1/>
                                <node2/>
                    </nodes>
                   <connections>
                             <connection1/>
                              <connection2/>
                   </connections>
        <process2/>
  </processes>
<package>

but when I use GMF to generate the model,edit and digram three 
plugins(my model.ecore is complete generated by 
<TC-1025_schema_10_xpdl.xsd>),
I could only get he *.XPDL structure as follows:
<package>
         <process1/>
                              <node1/>
                               <node2/>
                             <connection1/>
                              <connection2/>
        <process2/>
<package>

because in GMF ,the model levels corresponds with the view levels ,there 
are just two levels(process,node/connection) in view,
so the model can't get the pairs of <processes/> <nodes/><connections/>.

I have try the "http://wiki.eclipse.org/Diagram_Partitioning";, but it's 
not what I want.
I want just a editor to every process and store them to  one Package.XPDL

(2)In GMF,the model and view are separated to two XML files, but in 
workflow ,I just want a *.XPDL to store them.
I have try to use "Same File For Diagram And Model"  in gmfgen, but it's 
just simply combine the two XML files(like "<package/><<notation/>".
And in workflow Schema, the XML should combine the view info into model info
(like "
<package>
   <processes>
         <process1/>
                   <nodes>
                               <node1 Xcoordinate="13" Ycoordinate="34"/>
                                <node2/>
                    </nodes>
                   <connections>
                             <connection1/>
                              <connection2/>
                   </connections>
        <process2/>
  </processes>
<package>
 ")