[boost] [parameter] Named Template Parameter

Hi, I'm adventuring through the named template parameter support in the parameter library, using the test ntp.cpp as a documentation. But, AFAICS, there's no support for named template template parameters, is that right? Couldnt it be possible to add such feature? I think it is possible if we use a different binding and an template_template_keyword (or with another name) ? the parameter requirements would be different though.... I could code this support if there would be a support on how to do it (what would it break and etc?) I'm really needing this feature ASAP. Thanks, -- Felipe Magno de Almeida