Hello

I have found that trep=yes gives me correct closing quotation marks in the commercial font Baskerville MT Pro if I type the simple ' as usual in TeX; but opening quotation marks remain as ` or ``. 

In XeTeX I could get round this with e.g.:

\catcode"0060=\active% 0060 is the position for `

\def`{{\char"2018}}% 2018 is the position for  ‘  (opening quote)

But this fails in ConTexT.  Any idea how to fix this, with or without any \catcode fiddling?

(In XeTeX the font works as expected if I just give

       mapping=tex-text

when setting up the font call, but I don't see an obvious version of that in ConTexT.)