Thanks, this looks good, I had limited success with a LogFile directive in the subdomain's vhosts.conf file.
here is what I have,
# CustomLog with format nickname
LogFormat "%h %l %u %t \"%r\" %>s %b" common
CustomLog /vhome/[domain]/statistics/logs/access_log-[doamin[ common
- does not work, do I need to enclose this in a context?
One question, is the vhosts.conf included withing the virtual domain context or after, I was never clear on where plesk included these files.