Posted by Dusty

1) This is kind of the problem with Photoshop for pixel art. It's not designed for it. Yes, there are pixel artists that use Photoshop, and use it well, but it's not an insult to Photoshop. It was just obviously designed for painting and photo manipulation, so you run into small problems like this.

2) Stuck in what way? Right click the canvas while using a brush tool and select another size?

3) Go to frame 1, make sure the layers window has "Propagate Frame 1" checked and add the new frame. It should be automatically visible in all the other frames.

4) Pixelation(wayofthepixel.net), if you want to use Photoshop for pixel art. Search photoshop and see if there's not already a thread addressing these sort of issues.