ViewportControl

Hello ,

I try make a FlowPanel list with all group inside a document.

I’m trying to create some miniature viewports and “zoom” group by group on each viewport, but I’m having some problems configuring these new viewports

        ViewportControl ViewportCustom = new ViewportControl();
        ViewportCustom.Viewport.ZoomExtents();
        ViewportCustom.Viewport.DisplayMode = 
        Rhino.Display.DisplayModeDescription.FindByName("Shaded");
        panel1.Controls.Add(ViewportCustom);

Need:
1º Change BackGround color
2º Set Top view
3º Lock zoom
4º extend zoom to obj

Is possible with is ViewportControl ?

Thanks