Once an order has a Job assigned, the insert button can be used from the order, job, or line item window to access the Catalogs feature. The Catalogs application can be used to search for and add parts to the order.
Refer to Adding Parts to Jobs from Catalogs for more information.
See an example of the Aftermarket parts Interface window.
For more information, you can access the Using WorldPac to order parts video from the MANAGE SM menu at Help > Video Tips > Using WorldPac to order parts.