I need the ability for me as the owner of a space, folder or list to be able to set up automated reminders or notifications based on due dates and any other date fields including custom date fields (but due date would be a good starting point)

Use Case Example:

For a specific list I need to set up notifications/reminders that go to the assignee (and possibly to any watchers) via pop up and email 1 month from due date, 2 weeks from due date and 1 week from due date provided the task is in a not started or in progress status.

I may also want to set this at space level so it applies to all folders and lists below it.

If not a built in functionality at the very least this should be possible via automations