cst planewave ports

Hello everybody,
I have a problem.Is it possible in CST studio to use all ports and plane wave all together in transient solver?
Thanks

Hi
would you please to say what is the usage of this?

Hi everyone,
I have a problem. I am simulating a FSS cell in CST Studio and I want to calculate the reflection coefficient in a frequency range with a plane wave (TEM mode). I am using a waveguide, but I am not sure which mode I am exciting with a waveguide. Any of you can you tell me how to excite a TEM mode with a waveguide port.
Thanks in advance,
David