[NTG-context] Page Break Events

Hello, since that question has probably gone by unnoticed in my other posting, I'll ask more directly here: How can I react on page breaks (in MkII)? More specifcally: I need to reset a variable whenever a pagebreak occurs (atleast when automatic page breaks occur ... but it would be nice, if it also works for manually broken pages). The only thing that I was able to find was \insertpagebreakhandler ... but it seems as if this can only be triggered manually with \page. Thanks in advance! Andreas.