We've set many of our users with a role that only allows them to modify their own calendar. However, none of them can add time to the calendar after that date has passed. For example, if I was sick yesterday and wanted to put that time in the calendar, I could not do that. Is there a setting that I'm missing that would allow them to do this? I don't want to give everyone access to modify everyone's vacation time if that is the only other option.