Surface Plots

This is something that would be really useful. I would like to have the option to plot surfaces. For instance if I have a bunch of points with similar energy. I would like to be able to define a window of energies and if they are next to each other I would like to be able to create a surface around them and visualize it. This would be extremely useful for understanding the energetic landscape.

It would be nice if I specify a range of energies if I could toggle the transparency of the surface and that the surface would take on colors associated with the energies.