I need to sort by both the plan effective date (in reverse chronological order) and if an override was filled out. However when I click on the sorting I can only sort on the date line item or the override line item. When I sort on the date line item it ignores the overrides that do not have a date and when I sort on the overrides, the dates are not sorted. Can I not sort on both line items? If I can't sort on both items what is a way to get pass this?