[NTG-context] Own environment creating

Hello experts, I'll find somewhere perfect example of how to define and set parameters of my own environment. I want to create my own environment derived from framedtext environment. I want to use my own settings such as: \defineframedtext[MyFramedCols][MYTITLE=My title, MYNUMCOLS=3, ..., width = .... (ie the rest is inherited from the parent environment) ] Is such a thing possible? It is within the power of an ordinary user to do something similar (as for example using namespaces)? I was googling without result... Sufficient to link it somehow to try to wade through Thanx Jaroslav