You technically can't change the "Home position" but you can set up the camera to default to another location right after it does its start up dance and ends up at the home position. This is done by setting you preset "0". This is done by moving the camera to the location you wish, pressing the "set preset" button, then pressing "0", and then pressing the "set preset" button again. This should have saved your preset "0" to be the location your camera defaults to after powering on.