Automatically complete shipped orders
From WC Vendors Pro v1.8.4, when all vendors of an order marked their items as shipped then the order will automatically change to complete.
You can enable this feature in WC Vendors -> Settings -> Capabilities -> Orders -> Order Status Update
Mark all items shipped if the order is marked completed
When the order is completed, all items belonging to that order will be marked as shipped.
You can enable this feature in WC Vendors -> Settings -> Capabilities -> Orders -> Order