getSelectionActions().add((addSpecificChildAction).getId());
addSpecificChildAction = new AddChordGroupFormAsChildAction(this);
addSpecificChildAction.setSelectionProvider(getGraphicalViewer());
getActionRegistry().registerAction(addSpecificChildAction);
getSelectionActions().add((addSpecificChildAction).getId());
addSpecificChildAction = new AddBeamGroupFormAsChildAction(this);
addSpecificChildAction.setSelectionProvider(getGraphicalViewer());
getActionRegistry().registerAction(addSpecificChildAction);
getSelectionActions().add((addSpecificChildAction).getId());
addSpecificChildAction = new AddRestFormAsChildAction(this);
addSpecificChildAction.setSelectionProvider(getGraphicalViewer());