Domain name change?

[Dinocanid]

So if I wanted to change my domain name but keep mysidiahost, would I use the redirect option in cPanel? This is what it looks like:


I've got more questions too:
1. I'm guessing users who enter the old URL will just automatically be redirected to the new one?
2. Will files still need to be moved in this case? If so, where? Since I'm not changing servers

This is my first time ever doing this, so I don't want to mess anything up.