     @graph.on 'renameNode', @renameNode
     @graph.on 'addEdge', @addEdge
     @graph.on 'removeEdge', @removeEdge
+    @graph.on 'changeEdge', @changeEdge
     @graph.on 'addInitial', @addInitial
     @graph.on 'removeInitial', @removeInitial
     @graph.on 'addInport', @addInport

      metadata: edge.metadata
      graph: @graph.properties.id

  addInitial: (iip) =>
    @registerChange 'addinitial',
      src:

    @graph.removeListener 'renameNode', @renameNode
    @graph.removeListener 'addEdge', @addEdge
    @graph.removeListener 'removeEdge', @removeEdge
    @graph.removeListener 'changeEdge', @changeEdge
    @graph.removeListener 'addInitial', @addInitial
    @graph.removeListener 'removeInitial', @removeInitial
    @graph.removeListener 'addInport', @addInport
