Dave, I read through the following articles to figure out how to do it:
(this one had a link to download the mod file so that I could access the debug menu on the K-X, not sure how the K-5 handles that)
Got the focus chart from this article:
Apparently the focus correction applies to all lenses used on the K-X. That will be ok for me at the moment since this is my only lens. I do not know how this is handled on something like the K-5.