[solved] how to add submenu?

    CXTPCommandBars* pCommandBars = GetCommandBars();
    CXTPMenuBar* pMenuBar = pCommandBars->SetMenu(_T("Menu Bar"), IDR_MAINFRAME);

    CXTPControls* pControls        = pMenuBar->GetControls();
    CXTPControl*  pControl        = pControls->GetAt(5);                   // <== "Tools"
    CXTPControls* pUtilCtrls    = pControl->GetCommandBar()->GetControls();

    CXTPControl* pSubMenuItemCtrl = pUtilCtrls->GetAt(2);    // <== "Item3"  

// I don't know how change  usual type of menu item to popup. Just delete and create new.
    pUtilCtrls->Remove(pSubMenuItemCtrl);

 // make some menu for dynamic menu.
    CMenu SubMenu;
    SubMenu.CreatePopupMenu();

    SubMenu.AppendMenu(MF_BYPOSITION | MF_STRING, IDD_DYNAMIC+1, _T("Item3-1"));
    SubMenu.AppendMenu(MF_BYPOSITION | MF_STRING, IDD_DYNAMIC+2, _T("Item3-2"));
    SubMenu.AppendMenu(MF_BYPOSITION | MF_STRING, IDD_DYNAMIC+3, _T("Item3-3"));

    CMenu SubSubMenu;
    SubSubMenu.CreatePopupMenu();
    SubSubMenu.InsertMenu(0, MF_BYPOSITION | MF_POPUP, (UINT_PTR)SubMenu.m_hMenu, _T("Item3"));
    
    pUtilCtrls->AddMenuItem(&SubSubMenu, 0);