\setupsectionblock[bodypart][page=yes] \setupsectionblock[backpart][page=yes]
or for the backpart
\setupsectionblock[backpart][page=yes,before={\page[left]}]
Thanks Wolfgang. I've been playing with different bodypart and backpart setupsectionblock settings: number=yes/no, page=yes/no/right, before/after={\page[left/right]}]
From what I observed and understand (from the manual and http://texshow.contextgarden.net/command/detail/296 )...
number=yes/no : doesn't have any effect at all page=yes : starts (a section block on) a new (left or right) page page=no : doesn't have any effect at all page=right: starts (a section block on) a (new) right page before/after : before/after starting the new page \page[left/right] : forces a left/right page The following \setupsectionblock[backpart][before={\page[left]}] gives more what I was looking after, however there's still a blank numbered page as the last chapter's last page which I've unsuccessfully been trying to get without page number. Alan