Any products you include when creating a FlexJob will contribute to the FlexJob price. Every time you include a product or increase its quantity the Included Products Total Cost will recalculate.

If the product you wish to include is Live (connected to a partner) you can activate its series under Equipment >> Live or add it as a Live accessory on office.

If the product is not connected -- you can create it under Custom Equipment or Custom accessories on office.

If you do not wish to break that item down as a separate included product, you can mix its cost into the Material Cost in the Pricing section of the FlexJob you are creating.