[NTG-context] beginner's question: interlinespace and definetyping

Hi, it seems that I keep asking the beginner's questions... How do I combine \setupinterlinespace with \definetyping? I'd like to have a verbatim envrionment with less interlinespace then the rest of the document. \definetyping [befehl] [before={\startframedtext[width=.8\makeupwidth, before={\setupinterlinespace[line=10pt]}, background=screen, backgroundscreen=.9]}, after={\stopframedtext}] does not seem to have any effect. Putting the setupinterlinespace to the first 'before=' has no effect either. Patrick (I am pretty sure that I could have answered these kind of questions myself a few years ago - that's embarrassing)