zooming works, when you are zoomed and you click on a spot, it zooms you back to the normal size with that spot in the center, but does not set a point.  When you click on a spot that does not have a spot there already at standard magnification, it places a point there and segues to the issue screen passing the issue number which is the count of the new item in the issue array.  Creating and managing that array probably needs to be done in the issue entry controller.