[NTG-context] Please: \adaptlayout[*here*][height=...] needed!

Hi, I really need a way to enlarge some certain pages. Because the pagenumbering is not fixed yet I cannot use \adaptlayout[71,82][...] in the preamble. What's the command to place \adaptlayout (or something similar) right at that position in the text where the page needs to be larger? Something like \enlargethispage{15pt}. Again, thank you for your help, Steffen