Working area is not big enough, can it be changed?

Hi,

Im working on a fla. with stage sized 650 x 360 pix.
On this stage is a big sized MC (1285 pix height) which will move around, according to button presses. The problem is i can’t really work on the lower parts of this clip, because the scrollbars will not go that far down. I can only see this MC when i set the view option to ‘show all’, but when i do that, the size is too small to really do something, and tools don’t work in the lower area. Can i change the size of this working area, i.e. like it can be changed in QuarkXpress?