Hello smhoon,
Yes - your analyis and assistance are not forgotten, and they are much appreciated. As I said, we will be considering this for the next revision of Adagio Payables. We felt it was more important that we get Adagio JobCost shipping, with the benefits it offers, rather than delay its release so that we could implement all the suggestions we've have.
We are expecting to make significant improvements to all our products as each is updated in turn.
If it is very important to your clients that this information be available right away, then we would be willing to discuss implmenting this modification specifically for them on a custom basis. However, normally the expense of this is often (but not always) beyond what most packaged software clients are willing to invest in their solutions.