I went back to the Transform and to my dismay it was working only partially. I took up the topic with c-GKucukkirca@apptio.com">Gulcin Kucukkirca and we reviewed what we did: the transform needs a table with all possible combinations so that it can do a LookupEx and unfold the lines properly.
We have that working in the first part of the transform, but there we are dealing with numbers up to 60 to a hundred or two. This is manageable.
For the second part of the exercise, creating a list of ESX hosts we need for next year's budget based on the list of planned VMs, the numbers are in the thousands range. This is impractical.
c-GKucukkirca@apptio.com">Gulcin Kucukkirca eventually recommended that we do that last step in Excel (sniff).
In any case I learned a lot about the "Apptian way".