Can someone tell me where the AntiCaptcha settings are in JD2 please?

I want to be able to switch off automatic captchas with JD2 (it's eating my CaptchaBrotherhood credits) the same way I did in JD v9.xx.
All you had to do there was put a checkmark in "Disable automatic captcha" (or whatever it was called), and that would stop JD from using Captcha Brotherhood.
In JD2, I cannot find this setting anywhere...
Help???