Hi, below is a short patch for \definefontfamily. function selectfont.registerfiles(index)     local data  = data[index]     local colon = splitat(":",true)     for alternative, _ in next, alternatives do         local arguments = data.alternatives[alternative]         if arguments and arguments ~= "" then             local entries = settings_to_array(arguments)             for index, entry in next, entries do                 method, argument = lpegmatch(colon,entry)                 if not argument then                     argument = method                     method   = "name"                 end                 if #entries == 1 and method == "features" then                     extras["features"](data,alternative,argument)                     methods[v_default](data,alternative)                 else                     (extras[method] or methods[method] or methods[v_default])(data,alternative,argument)                 end             end         else             methods[v_default](data,alternative)         end     end end Wolfgang