How do I add Expenditure Organizations in Projects iProcurement?

In Projects iProcurement

View Cart and Checkout, then click Checkout  you are at Step 1 of 3 Checkout: Requisition Information

Click Edit Lines
Click the Billing tab
For each line, there is Project, Task, Expenditure Type, Expenditure Organization and Expenditure Item Date

I am trying to figure out how to add organizations to the dropdown for Expenditure Organizations.

My best guess is that this is populated from a value set with a validation table (a view) called PA_ORGANIZATIONS_EXPEND_V but I'm not sure how to prove this.

If that is correct, the view seems to pull data from hr_organization_units and pa_all_organizations