Antenna Toolbox "rcs" function for multiple materials?

I am playing around with the Antenna Toolbox 'rcs' function to simulate monostatic cross section for simple objects. I create a platform object using a STEP file of my geometry then utilize the "rcs" function to simulate it. The documentation for this function provided by MathWorks shows examples of simulating a PEC shape as well as the NASA almond in all dielectric utilizing a .mat file input. Is there a way to include more than one material? Say that I want a PEC body with some other non-PEC material on top of it? Is this supported, or will it be supported in the future?

Thank you!!!

[Torsten]

For this very specific question, I'd contact support:

https://uk.mathworks.com/support/contact_us.html