Renaming "Dropped Pin" in Apple Maps on iMac
I went into Apple Maps. I zoomed into a specific location, and dropped a pin. Apple Maps named the location "Dropped Pin". I would like to rename the location, and have tried all of the obvious methods (double clicking on the phrase "Dropped Pin" in the info dialog box), but cannot figure out whether it is something that cannot be done, or something that I can not find help on.
iMac, OS X Mavericks (10.9)