"Postpone Until" Option

[kinook]

Thanks for the suggestion.

For now, you can approximate this by focusing the date attribute (by clicking on it or Ctrl+4, then scrolling to it), then press Alt+C to show the calendar and

right arrow (tomorrow)
down arrow (one week)
page down (one month)
page down, home (next month)

And press Enter to update the attribute with that date.