Communicate PO changes to Supplier

When creating a PO revision, can you communicate in the PO what changes have been applied in the revision.

For example FOB has changed or PO Line 1 price changed etc.

When PO's contain many lines, it sometimes can be difficult for suppliers to detect the actual change. By having a description of the change in the PO, it would help the supplier to detect the differences in the PO revisions. The Note to Supplier could be used by the buyer, but this would be a manual update, preference is to have this generated automatically.