How to exclude descriptive flexfield segments in purchase agreements

Summary: Need to make global segments created in descriptive flexfield PO_HEADERS only appear in purchase orders.

Content (required): Is there a way to make global segments created in descriptive flexfield PO_HEADERS only appear on purchase orders and not on purchase agreements?

Version (include the version you are using, if applicable): 11.13.22.10.0

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