I know the question of setting different weekends has been asked in terms of other countries other than the US. But I work for a defense contractor in the US and I need to adjust my weekend type because the 100,000 people workforce is switching over to a 4-10 schedule. That means 4 days a week 10 hours a day. I need to be able to adjust the weekend in the US. Please implement this change in Gantt settings as soon as possible.