Stylesheet and Date Expression

Is it possible (or, I should say, "has anyone..." since I might not have the capability to do it myself) to tweak the standard/given stylesheet so that the Date Expression displays in a separate column in the same manner as "Title" and Instance elments ("Box", "Folder", etc)?

Yes, to your essential

Yes, to your essential question: the AT default style sheets can be modified.

Such modifications would be made independent of the AT client and then the modified stylesheet would replace the default stylesheet, using the same file name that the default stylesheet has.