How to plot phase of realized gain of antenna pattern in HFSS like CST Software

Hi
Can anybody help me to make plot of phase of Antennas' Radiation Pattern in HFSS?
in CST Studio software, Farfield results, plot "theta phase" and "phi phase" of realized gain of Antenna pattern. How we can plot phase pf pattern in HFSS like CST?
Thanks

To observe the Realized gain in HFSS just goto Results>> Create Far Field Reports >> Radiation pattern
Then select the required PHI and Theta combinations

Thanks. that's right
I knew how plot Gain of antenna in HFSS. I want to know how to plot "phase of pattern" in HFSS.
As you can see in CST results. Attached file shows the image of result in CST (plot theta phase of pattern)