Question 'Website Copying' - can it be reversed?

[PaulRHopkins]

I was building a website on http://drjet.co.uk but wanted a duplicate backup on http://drjet.uk so I opened the web admin in Plesk and clicked on 'website copying' but didn't read it correctly and I have copied the wordpress and demo theme onto the main website. I reread the wording at it states 'keep existing files on the destination site' so I hope it can be easily restored.