Create a purchase order for a KIT

Hello,

I have a KIT for example :

KIT material number KIT001

This KIT has a lot of composants:

COMP001

COMP002

COMP003

I want to create a standard purchase order for this KIT.

When i write on item 10 the number of KIT + ENTER, i want to have on the next items the composants of the KIT with the quantity.

(idem for a BOM on a subcontract PO).

Thank you for your responses.

Regards.