What's the difference between the boresight gain and peak gain in HFSS?

Hi all,
I have some simulated questions to ask. What's the different between the boresing gain and peak gain in HFSS, and how to configured ? Thx...

I'm not sure about HFSS but,
Boresight means at azimuth = 0 degree. For some antennas, the maximum/peak gain need not be at the boresight, especially with arrays during scanning.

Hi Kohi_boy,
thx for your answer, that's halpfully for me.