Yep, it's easy. As I recall you need to put the stick into neutral and turn the car off.
First gently unclip the entire base and lift it up. On the shaft of the lever there's like a clip thingy. Undo that and then give it a good hard yank. Don't press the button on the knob! (this just gets dirtier and dirtier). It'll slide right off. Push the new one hard down, wait for hte button to "click" (don't push it yourself!), redo the lock and push it all down.