Double-stemmed unison notes in score?

Does anyone know if and how I can create a double stemmed unison note for a SATB choral score?

Thanks so much!

Ken

If you set up the staff as polyphonic, you would place two notes with the same start position, pitch, and length in different voices and flip the stem on one of them, for example. (as they are different voices in actuality.)

Thanks, Steve!