Question about changing domain

I'm using Plesk 12.0.18 and I have a question.

I have a website set up but I want to change the domain and set up redirects to new content pages on the new domain from the old.

I looked up on renaming the domain of a current subscription but I found out that deletes my current files and databases :/ Is that true?

What's the best way of going about with this and having my emails forward to the new domain?

I was thinking of setting up a new subscription with the new domain, enabling...

Question about changing domain