OPC write-back settings available for Expression Tags is missing

[witman]

[13069] - Write value to Opc item feature for Expression Tags is no longer available in 8.0

This functionality as it was in 7.9 is not coming back. Tags that had an OPC write-back defined now get a special “Legacy Value Changed” entry in the Tag Event Scripts: [wb_script] Tags that you want to add this functionality to should just use the regular Value Changed event to invoke system.opc.writeValue.