[NTG-context] framed text over multiple pages

Dear list, I'm trying to find the command (in manual, wiki or mailing list) that enables using background behind text spanning over multiple pages. At the moment I have \startframedtext [width=\textwidth, background=color, backgroundcolor=mycolor1, frame=off, leftframe=on, framecolor=mycolor2] but I remember that there used to be a command that allowed doing the same, but spanning the text over multiple pages. I would be grateful for any hint/pointer to the manual. I've found a document that does underlining of words in paragraphs, but this seems like an easier problem anyway. Thank you very much, Mojca