Selon jean-michel soler <jmsoler at free.fr>: > posted on the patch tracker : > http://projects.blender.org/tracker/index.php?func=detail&aid=4893&group_id=9&atid=127 > Not a pressing need, we can write accurate scripts without that : http://jmsoler.free.fr/didacticiel/blender/tutor/py_allUVfaces2TWOSIDED_en.htm