If you want multiple domain names to point to the same site or have a domain name that pointed to an old site hosted elsewhere then you need to change the the destination using your domain name providers control panel.
The 301 redirect needs setting up on the old site if you still have access to it - see this article
Hi John , I would like to use the domain name I have assigned to my magix webpage with my new dudaone webpage as this is viewable on mobiles and tablets which magix is not , the domain name was bought through magix but I cannot find out how to go about it ....I am not great with the technical stuff ...