Hi I am interesting use Ispconfig 3 and I would know that is possible put additional apache directives to something like template and it will be added automatically to virtualhost when account was created and how to? Also is possible different php.ini templates?
See vhost template in /usr/local/ispconfig/server/conf/ store the modified copy in conf-custom directory. Add the cahnges to the normal system php.ini file, this file is used as basis for custom php.inis. there is no separate template.