Do not see 'Rule parameter' tab on XOR Gateway property window; cannot associate parameters with Gateway

I recently downloaded Business Studio edition (3.2) , and was going through Loan exercise in '_Business Studo Training Lab Book'_. However, the step on page-35 i.e. "Associating Parameters with Gateway" is just simply not working for me. The reason being, when I click on XOR gateway, I do not see rule parameter tab in the property window. I did set the two sequece flow line coming out of gateway to conditional and default. I selected simulation as destination environment.

Any help?

(1) Answer