Automatically sending specific orders and products to the UNASSIGNED tab or NONE assignee

[LabAlley]

I work for an e-commerce raw chemical supply company based in Austin, TX. We ship over 1000 different chemicals from this warehouse alone, however, we have 5-6 main outside vendors where other products are drop shipped from directly. Because of this, we run into the situation where there are items on a single order from multiple vendors. We have those orders tagged, however the order does not automatically split and some items are not assigned to the right place. The other situation is for products ordered for the very first time. What we would like to see is an option to create an automation where orders with products from multiple vendors or products that are being ordered for the first time can be automatically assigned to the UNASSIGNED tab or the default assignee NONE. As the ShipStation manager for our company, it would be really easy for me to have all those orders in one spot rather than scouring all orders individually to find the ones that need to be split or reassigned.