This afternoon, I got an e-mail from our product manager asking if there was a way to get our product to do something with custom dimensions that it simply doesn't do now, but that one of our customers would like it to do.
It turned out that this morning's change solves the customer's problem. In the next release, you'll be able to set up a formula to do exactly what they needed to do. I was even able to cut and paste the screen shot that showed it working the way they wanted it to.
I love it when a plan comes together...