Ability to enter supplier account number at property level

We have a situation where one of our suppliers has regularly been delivering to the wrong location. We have Arena A and Arena B, Arena A have been placing their orders but the supplier have been delivering to Arena B in error.

A simple solution would be for us to enter the supplier's account number for each property in the Customer Reference# field at the Vendor Information screen so that it appears in the Supplier A/C field on the Purchase order. However this can only be set at Central Purchasing level and not at Property Level. 

Please can the Supplier Account number functionality be made available at property level This would greatly reduce the delivery issues and ensure that the team at Arena A receive their deliveries in a timely manner with less logistical issues to have to overcome when this occurs.

Thank you

Anna