I often add text to my dimensions - (TYP.) and other things.
In V8, I can even make my Primary Units text into multiple lines of text. But its all above the line. So I remembered in V7, using Secondary Units and completely replacing the * with text for another line.
So I figured in V8, if I can have one, two or even three lines of text above the line, maybe I can leave my actual measurent text above the line and edit my secondary units to get two lines of text below the line.
But, there is no joy in Mudville - V8i only accepts single lines of text for Secondary Units. Boo!.