Extend Filter by date in admin via custom WordPress filter

We have a requirement to by easily able to filter orders by date in the main admin Orders list. You drive options for Today/Tomorrow, then by month. We have a requirement to add in options for “In 2 days”, “In 3 Days” for a week. I would suggest making this menu flexible by filtering the menu $options in Iconic_WDS_Order::add_delivery_date_filter() so that developers can add custom option here if they wish. I’d be happy to submit a patch if you are open to this. Many thanks, Ben