[rules-users] How to create nested rules in Drool Guvnor

Hi Users, I have a scenario in which I have to make nested rules. But I don't know how it is to be done in Drools Guvnor. I had created them in Drool Rule Engine, but have no clue of the same in Drool Guvnor. Can you please tell me how to achieve this in Drool Guvnor , as it is very urgent. Please tell. Thanks & Regards Pardeep Ruhil ______________________________________________________________________