How do I add captcha breaker manually on GSA CB?

I need to manually upload a jpg image (captcha) on GSA CB so the software can break it.    I have been trying several ways but I all got was the bruteforce mode which does not break the captcha after a couple of minutes waiting.   Can anyone help me please?

Check out this thread to learn the basics: https://forum.gsa-online.de/discussion/1372/sdk-for-dummies-how-to-make-your-own-captcha-definition#latest