Question: how do I plot two functions in one plot component with two different

I am creating a maple document to display the tangent plane to a function. the resulting function and tangent plane are displayed in a plot component. The problem I am having is that I can display both the function and the tangent plant at the same time with the foloowing statements:

PlotSurfs := plot3d([Func,TanPln], x = Xo-DmX .. Xo+DmX, y = Yo-DmY .. Yo+DmY,axes=VarAxes,scaling=VarScl,orientation=[OrX,OrY,OrZ]);

 DocumentTools[SetProperty](PlotWin, value, PlotSurfs);

what I want to be able to do is set options for each of the plots individually. For example have  the base function displayed as a colorfull function, but have the tangent plane be grey. Also I would like to limit the plot domain of the tangent plane, so that it is a small square rather than a full plane.

How do I combine plots and have them displayed on a plot component?

thansk,

RG