Not only have I been waiting for this feature forever — but so have many of my clients. You can now set default reminders on date properties, globally. (Previously, you had to set them manually at the item level every time.)

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The options are the same as before: on the day of the event, 1 day before, 2 days before, or 1 week before.

One of those features you wish had been there from the start — but hey, better late than never 😉