Deadzone shape?

[Donatello]

I see some pros use deadzone cross and others square how do you change that?

[Invisible]

https://www.youtube.com/watch?v=2BHjvhxw06A&feature=youtu.be

If you don't want to watch the whole video, the important part starts at 6:10 min. I would use the manuel way to change settings and not profiles which are explained before.