Modify an existing virtual server configuration

I have created a virtual server, using apache, and aliased a second domain to the first.

I now have a need to make the second domain a stand alone site, but can’t see any way to modify the setup, other than delete the server. And doing that, of course, deletes all the associated files, something I really don’t want to do.

On a similar vein, I would now also like to add a new block for a new feature, but again that doesn’t appear to be available for update. I realise this could in theory be added using .htaccess, but unfortunately that is also disabled, so I again would need to modify the virtual host configuration, the thing I’m failing to do :frowning:

Any help on how to work around this would be greatly appreciated