[NTG-context] Sorting the content of \startlines

Hello, Is there a way to sort the content of \startlines envinroment by the alphabet? I have a list of songs in arbitrary order, and what to output it in alphabetical one. ex.: \starttext \subject{My set-list} \startcolumns\startlinenumbering\startlines Fly me to the moon Hit the road jack Sway Libertango Sunny % and more titles \stoplines\stoplinenumbering\stopcolumns \stoptext -- Best Regards, Vyatcheslav Yatskovsky