I have a 27 inch iMac running Sierra. Any alerts that pop up, assuming that they ever show up at all, don’t show up in my visual field at all. sound is of no use, since I’m often not at the computer when the alert comes. It used to be bad on a 21’ or 24" monitor, now it’s impossible. There’s also the serious lack of snooze options for Reminders and Calendar.
What I want is the much beloved Alarming Events from the Classic era. Since that’s not possible, what should I try?
I need a dialog box that comes up in the middle of the screen with largish text that can’t be hidden by other windows, and completely flexible snoozing, from minutes to years plus particular dates and times in the future, all settable in the alert. I don’t need or want sync, operability or data exchange with any other apps, or any other fancy features (though if it could remind me about friday the 13ths in advance, it would be nice). Just genuine alerts that can’t be missed, with simple repeating alerts, such as daily or every month on the 5th.