Key Combination for output condition records

Hi

How do I create a new key combination for the outpur condition records - transaction VV31 currently only have sales org/customer no and i want to put in billing document or something else that i can use - my scenario is that some of my customers have more that one output type attached and when a billing doc is created all of the outputs are produced - i want to produce for billing type z1 output rd00 for z3 output zvms and such

any thoughts

thanks