hog 1000 help

how do you un-park a fixture on a hog 1000? there is nothing in the manual regarding this function on the board. during regular operation the lcd shows a park button at the bottom of the select screen. yet, in the manual, the diagram of the lcd screen shows all of the buttons on the select screen but the park button and does not list "parking a fixture" in the index. another user parked a fixture on my 1000 and now i don't have any control of it and can't release it from the parked position. can some one help?
Related