More snooze options

The current set of snooze options is very limited, with huge gaps,
and no opportunities for customization. Outlook does it decently.
I suggest looking at that app as a model.

Note:
The best strategy I have found to keep from missing appointments is "half-life" snoozes.
Calendars don't seem to be compatible with my brain, so I depend on a series of reminders
that goes something like this:
1. One week
2. Three days
3. One day
4. Twelve hours
5. Four hours
6. 2 hours
7. 1 hour.
8. 15 minutes
9. 5 minutes