I would like to see more options than just these three: manual, daily or hourly.
I can think of many instances where weekly or monthly for that matter would be enough, and other cases every 10 minutes would be the best, and of course sometimes every other hour, or two times a day, or every 6 hours, or every other day, … I guess you understand.
Simply put, please give us a little bit more control over when synchronization with a pack is done.