I submitted a patch to the sf tracker; see tracker ID 1965794 (maybe the following link works):
https://sourceforge.net/tracker/index.php?func=detail&aid=1965794&group_id=130831&atid=719136 A note I forgot to mention in the tracker: I couldn't think up very good names for the text of the preferences in the FeaturesPage. "Hour of start of work day" etc. might be confusing... Rob
