\setuphead[chapter][align={nothyphenated,notcollapsed}]
Would that mean there's no way to collapse the hyphenation throughout the
entire document from a single location? That is:

\nohyphencollapsing
\setuphead[section][align={nothyphenated,notcollapsed}]
\setuphead[subsection][align={nothyphenated,notcollapsed}]
\setuphead[subsubsection][align={nothyphenated,notcollapsed}]

Would "\nohyphencollapsing[head=yes]" allow the setting to apply once to
all areas?

Thank you!