GZ curve degree steps

Hi All,

I want to ask is there any criteria or requirements on the degree steps of calculating the GZ curve. For example, I am using maxsurf stability, it calculates the GZ curve at angle of heel from -5 to 80 degrees in steps of 5 degrees, and from 80 to 120 degrees in steps of 10 degrees. That is the maxsurf default. My question is am I able to change the degree steps? is it required by any rules (IMO, DNV, etc.) to keep a certain range and degree steps? Thanks in advance!