cst s parameters

How can I modify the voltage or power at the signal used in simulation? I use a waveguide port and need to increase the emitted power. And also, if I want other shape then gaussian or rectangle? User defined signal doesn`t allow me to chenge wave shape, as far as I see.
Regards

Hi Decesium,
It lets you change any parameter you want since you write your own function. I did it once with a high voltage exponential signal.
Cheerz,
P.

Than you for answering me! Writing my own function means C++ programming (because I'm not a programmer, I only used Matlab) Can I use Matlab and export somehow (HOW?) the signal created there in CST ?