[OT] Opinions about On-Rev

[Alex Tweedly]

Sarah Reichelt wrote:
> I have signed up as troz.on-rev.com.
> I own the domain troz.net and plan to re-locate it's hosting, but I
> wanted to test it out before changing the DNS entries.
> I created a sub-domain "troz.troz.on-rev.com" so I could migrate my
> site & test it, before changing it to an AddOn domain and altering the
> DNS.
>   
Could you expand slightly on how you do this ?

I (think I) unerstand most of it
 - create a sub-domain
 - copy files over
 - test it

But how do you "change a sub-domain to an AddOn domain" ?

Thanks
-- Alex.