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Steps:

1. Create new shape with:

void CDynaGraphView::OnFoAddNewpage() 
{
	// TODO: Add your command handler code here
	CFORoundRectShape * pNode1 = NULL;
	if(m_pCurRunModelHitShape != NULL)
	{
		if(m_pCurRunModelHitShape->IsKindOf(RUNTIME_CLASS(CFOLinkShape)))
		{
			CFOLinkShape *pLink = (CFOLinkShape *)(m_pCurRunModelHitShape);
			pNode1 = (CFORoundRectShape *)pLink->GetFromPort()->GetParentComp();
		}
		else
		{
			pNode1 = (CFORoundRectShape *)m_pCurRunModelHitShape;
		}
	}
	else
	{
		AfxMessageBox(_T("Please select a root node for adding at first!"), MB_OK|MB_ICONINFORMATION);
		return;
	}
	
	CFORoundRectShape * pNode2 = CreateNode();
	m_pCurRunModelHitShape = pNode1;
	
	if(pNode1 != NULL && pNode2 != NULL)
	{
		switch(theApp.m_nLinkType)
		{
		case 0:
			{
				AddLinkShapeNoUndo(pNode1, pNode2, FO_COMP_LINK, 1);
			}
			break;

		case 1:
			{
				AddLinkShapeNoUndo(pNode1, pNode2, FO_COMP_UPRIGHTLINK, 1);
			}
			break;

		case 2:
			{
				AddLinkShapeNoUndo(pNode1, pNode2, FO_COMP_BEZIERLINK, 1);
			}
			break;
		}
		

		if(theApp.m_bHorz)
		{
			AfxGetApp()->BeginWaitCursor();
			CFOPHorzLayout layout1;
			layout1.m_nLayerSpace = 160;
			layout1.Initialize(GetCurrentModel(), *GetCurrentModel()->GetFormObjects());
			layout1.DoLayout();
			AfxGetApp()->EndWaitCursor();
		}
		else
		{
			AfxGetApp()->BeginWaitCursor();
			CFOPVertLayout layout1;
			layout1.m_nLayerSpace = 160;
			layout1.Initialize(GetCurrentModel(), *GetCurrentModel()->GetFormObjects());
			layout1.DoLayout();
			AfxGetApp()->EndWaitCursor();
		}

		CMainFrame *pParent = STATIC_DOWNCAST(CMainFrame,AfxGetMainWnd());
		ASSERT_VALID(pParent);
		//	if(pParent->IsWindowVisible())
		{
			pParent->m_wndTableBar.InitShapes(GetCurrentModel());
		}
	}

}

2. Layout nodes:

void CNewVisualProxy::GenerateDefaultPorts(CArray<FOP_PortScale,FOP_PortScale>* mpSpot)
{
	mpSpot->RemoveAll();
	FOP_PortScale m_Scale;
	m_Scale.xScale = 0.5;
	m_Scale.yScale = 0.5;
	mpSpot->SetSize(1);
	mpSpot->SetAt(0,m_Scale);
}