I sometimes have to create a purchase order that needs split into classes (dept 1, 2, 3, etc). However when I enter a purchase order on Quickbooks Pro Plus 2022 you have select one class in the header (not available to pick class in grid) of the purchase order. But the items I am purchasing need to be split up among 3 classes, not applied to one. How do I do this? 

For example, we are purchasing paint but the paint expense needs split up among 3 departments. I know when I receive against the purchase order I can change the bill to reflect this but it would make the work flow so much easier if it was done in the purchase order.