Pablo Rodriguez
19. März 2017 um 21:40 via Postbox

But [features={none, quality}] disables everything and I canot enable
protrusion plus expansion only.

At least, it doesn’t work with \definefontfamily. I haven’t tested this
with \setupfontfamily.
\definefontfamily[mainface][mono][Latin Modern Mono Prop][features=quality]

\setupbodyfont[mainface]

\setupalign[hanging]

\showframe[text][text]

\starttext
\input{zapf}
\input{tufte}
\input{weisman}
\stoptext

Wolfgang