BPA-->tools-->Control option Greyedout for only one BPA

Hi Friends,

Tools--> Control option disabled for only one BPA and respective Blanket Release shipments.

For other BPA and Blanket Release shipments its enabled and able to cancel or close or other option.

but only Control option disabled for one BPA/Release shipment lines.

Control option Disabled for BPA

Control option enabled for another BPA

Please help me if we have setup at BPA level to disable or enable Control option ?

Thanks

Laksh