Timing reminders

If I’m on my computer, but not timing, ask if I should be timing every x minutes. Or am I just not finding this. IT was a feature in Grindstone 3 right?

I see when I’m not timing and have been away from my computer, Grindstone 4 asks me what I’ve been doing. Where are the settings for this?

Am I correct in not seeing settings for timing reminder when I am AT my computer and not timing?

I’m used to GS3, just installed GS4 and confused about some of these basics.