(1) The main manual mentions (bottom of pg 78) "setting the state is done for the whole header" and (bottom of page 79) "the keys state, before and after work on all parts of the pagebody, main text, margins and edges.

So there's no way to set the text/margin/edge states separately ?
( I need different visible/invisible settings for standard, frontapart and backpart )

(2) pg 80 table 4.5: what's the difference between state=normal and state=start ?

(3) in \setup*[margin/edge] ( * = top/header/footer/bottom ), how do you differentiate between
the left and right margin/edge areas ?

Thanks and have a great weekend,
Alan