you can expand your tools panel's width to move the pasteboard. and you can increase the scaling to move your stage down and to the left. that's about it.
but it may help you to understand how the pasteboard and stage are positioned:
i believe the default behavior of the pasteboard is to extend 700 pixels on all sides of the stage and the pasteboard always starts at the top left. if you scale the pasteboard/stage to 16%, i would expect your stage's 0,0 to start at 700*.16 px from the top and left. and your entire pasteboard+stage to occupy (1400+stage.width)*.16 x (1400+stage.height)*.16
Thanks - not the answer I was hoping for though. Sorry for the slow response time.. forums were down when I tried earlier.