changing templates directory (requirement

Hi all, i recently adapted xwiki to the needs of my company. As the design issues were more complicated (also added some ajax stuff to reload attachments/history/comments list when changing tabs, added a breadcrumb plugin,... ) i choose to create my own xwiki templates and put it into a own templates directory (templates_porsche). My question is whether it is possible to make the templates directory configurable via xwiki.cfg file? As it is now i have to change the "templates" strings whitin the java code manually com.xpn.xwiki.XWiki.pareTemplate() com.xpn.xwiki.web.XWikiServletURLFactory.createTemplateURL() Did anyone else come across the same problem? greetings, kris