Among the configuration I am thinking of are:

  • WEB Dav configuration
  • Client certificate authentication for SSL sites

In stead of adding these features one by one, another way would be when system administrators in some form or another could manipulate the text of the configuration directly. Or better still, allowing the system admin to add these functions through LUA. You have already in PHP the possiblity to add custom configuration. Would be nice when something similar were possible in Apache (or other web servers too).