hallo, Hans! I'm interested in "page_insert (id 41)" node. It's just mentioned in node list, but not documented (in luatexref-t.pdf (beta 0.62.0)). Is there a chance to break a page (or create a page breaking node) while traversing the nodes. Maybe "page_insert" does that? tex example: $2+2$ <---*insert page brake here * $3+3$ Node traverse example: ..... node id=hlist numb(1), node id=math, subtype=0 node id=hlist numb(2), node id=glyph, 2 node id=glyph, + node id=glyph, 2 --------->end hlist numb(2) node id=math, subtype=1 --------->end hlist numb(1) <-------*insert page brake here* .... other nodes .... thanks, Linas LuaTeX, Version beta-0.61