Hi,
i understand you want to make an Earth plot along with a shadow plot. You can use the "geoshow" function to plot the Earth's surface. For viewing the shadow plot, you will have to add a light source for the shadow. You can do so by using the "light" function.
Finally you can specify the angle at which you want to view the plot using the "view" function. It takes in two parameters: the first parameter controls the azimuth angle, which determines the horizontal rotation of the plot. The second parameter controls the elevation angle, which determines the vertical rotation of the plot.
Please refer the following documentation to know more about the "geoshow" function:
I hope this helps!