I'm trying to migrate from jbossportal to gatein - seriously, not easy... - and I noticed nowhere there're references on how to add a propertie to a window (portlet instance in page) i.e. allow a portlet instance to get datas according to a specific place in a page/node , like I'm doing with jbossportal (I'm not talking portlet's preferences, shared by all instances).

I extensivelly use this, so if not, whatever gatein has to offer, I can just stop trying to use it !

Thanks