Is it possible to retrieve POs for all Requisition BUs at once in ADFDI Close Schedule template?

Summary:

Business users won't adopt ADFDI to close Purchase Order schedules because the Requisition BU field is mandatory so they can only retrieve POs one Req BU at the time. Would it be possible to make the Requisition BU field optional?

Content (required):

We currently have over 50 Requisition BU and it's not efficient to ask users to select one at the time to download the schedules. The process would be much faster and effective if the Requisition BU wasn't a mandatory field for retrieving the Purchase Orders.

Version (include the version you are using, if applicable):

23C

Code Snippet (add any code snippets that support your topic, if applicable):