I have some items that have dates and some that do not. For items that have dates I do NOT want to show items that are past due (ie. events that are before today's date (or 'now' is fine). However I also want to display items that have no dates set.
In my view if I filter on dates I can choose to display events that are on today or later, and that works fine. But then it doesn't display any items that have no dates.
So, my question is, how can I customize my filter to show items with no value for event date as well as items that start on or after 'now'?