Í came a bit further. However I don't know where to find step 2:
1) Setup the dns with a wildcard A record. Go to Dns Control, and add an "A" record:
* -> 1.2.3.4
where 1.2.3.4 is the IP of your domain.
This will allow anything.domain.com to resolve to your server. Apache does not yet know how to direct that name though.
DONE !!
2) To setup apache, go to:
Admin Level -> Custom Httpd configurations -> domain.com
In the top text area, add this *one* line:
ServerAlias *.|DOMAIN|
then click "Save".
WHERE TO FIND THIS ? ? ?