Hello, From command/setuphead I inferred this should work to set linespace to 1.5 within the chapter/section but it doesn't. Should it? I read on \setupinterlinespace and it's resetting mechanic but thought the parameter in setuphead would work. Also, I checked and this parameter is not mentioned in the manual, so maybe it does not exist.

\setuphead[chapter][interlinespace=big]

\starttext
\chapter{Some title}
Lines with 1.5 space? \input tufte

\startchapter[title={Some title}]
Try again? \input tufte
\stopchapter

\startchapter[title={Some title}]
\setupinterlinespace[big]
Now it works. \input tufte
\stopchapter

\startchapter[title={Some title}]
But it "leaks" out of the previous start-stopchapter. \input tufte
\stopchapter
\stoptext