How du I set up the new EZ Publish 5 to run in virtual host mode?

What I try to do is starting the new ez publish 5 setup script within EZ Publish. According to the installer docs the site should be in virtual host mode. I have put EZ in the apps directory and the ez itself htdocs and ez5.conf in an conf folder. Here is the ez5.conf:

Alias /ez5/ "/Applications/mampstack-5.4.12-0/apps/ez5/htdocs/web/"
Alias /ez5 "/Applications/mampstack-5.4.12-0/apps/ez5/htdocs/web"

<Directory "/Applications/mampstack-5.4.12-0/apps/ez5/htdocs/web">
    Options +FollowSymLinks
    AllowOverride None
    <IfVersion < 2.3 >
    Order allow,deny
    Allow from all
    </IfVersion>
    <IfVersion >= 2.3>
    Require all granted
    </IfVersion>
</Directory>

my httpd.conf has this two lines added at bottom. The rest of the file is unchanged:

Include "/Applications/mampstack-5.4.12-0/apps/demo/conf/demo.conf

Include "/Applications/mampstack-5.4.12-0/apps/ez5/conf/ez5.conf

The demo app works fine on URL: http://localhost:8080/demo/ The EZ app does not start on URL: http://localhost:8080/ez5/ There is only a white page

According to EZ setup there should be an vhost which is described here: https://confluence.ez.no/display/EZP/Virtual+host+setup

So I wonder where to put this vhost stuff..

Thanks for any help on this :)