Change dimensions of shape by pixels in Photoshop CS6

Question

I have created a rectangle with Photoshop CS6.

Now I want to alter its width and height by pixels, is that possible?

I know I can create the rectangle by clicking and choosing its width and height, but how to change it later?

On the Info panel I can see the dimensions in pixels but I cannot change them.

Answer 1

Easy one.

Enter Free Transform mode (Edit > Free Transform or CMD+T) and, at the top of your window, you will see these boxes:

Where you see "100%" in the width and height, simply enter the pixel value that you wish it to be:

Hit Enter until your changes are applied.