allow users to customize calendar intervals
In Outlook for Windows, I had my calendar set up to show 5 minutes intervals so that I could keep track of my activities over the course of the day. I know I can set custom reminders in Outlook on the Mac and I can schedule appointments that aren't constrained to 30 minute intervals. But I can't select a 10 or 15 minute interval for the calendar, so my appointments are all shown overlapping on the screen even when the number of hours shown is at the lowest level (4). Related to this (I think), it would be great if users could set work hours on the half hour instead of 9-5, 8-4, etc.