When you've got your pixel art up, go up to View / Add a View on your menu bar. A copy of the image opens. I find it helpful to see a smaller view because it's hard sometimes when you're zoomed right in at say 1200% to keep your bearings (and zooming in and out can get frustrating).

Click on the "Show or hide Document Manager" icon and it will show your image duplicated. Leave the 1st one at 100% and Click on the second one and increase the zoom level to your desired view. This will be the one you will work on. You can also increase the thumbnail size here.

All your work done on your zoomed in pixel art will be updated on your smaller image.

Global View - you can access this via the Layer or Selection Managers (above Document Manager icon) and will have a rectangle around the area you're working on, which you can also move to quickly go to another part of your image. This way you don't have to scroll up and down and sideways. Plus you can zoom in and out, resizing your window in the workspace.

Also, there's yet another way to move around the magnified image. Click on the little aqua box in the lower right corner and you can move all over the image similar to the global view on the layer manager: