This plugin adds a filter to the Edit Orders admin page to either show all orders or show non-zero orders. This is handy for shops that have a ton of free ($0) orders and need to view/fulfill only the non-zero orders.
shopplugins/woocommerce-hide-zero-orders
Adds a filter to the Edit Orders admin page to show all or non-zero orders. Handy to hide $0 orders.
PHP