I want to read a unique record from the fact table and get all the relative dimension records using the pxInteractionID and pxRank property. What is the best way to do this?

I was hoping to make use of "Interaction Shape" in a strategy. But this shape doesn't seem to take in the value dynamically on the right hand side. Is there a way to pass values dynamically to this shape? If now, what is the best way to get a fact record and all the relative dimension records with just the InteractionID and Rank or even the SubjectID?

Thanks,

Ratan Balaji.