The upgrade sequence of the master file and all references can be made in the Reference Manager via the menu item "Settings". The order is determined by an integer increasing from 0. By default, the active design file is at the bottom and has the sequence number 0.The files are referenced beginning in Slot 1 and with the number 1 and so on, as indicated here in this example:
Sub refUpdSelect() Dim oAtt As Attachment For Each oAtt In ActiveModelReference.Attachments Debug.Print oAtt.AttachName, oAtt.UpdateOrder Next End Sub
Sub refUpdSelect() Dim oAtt As Attachment For Each oAtt In ActiveModelReference.Attachments If oAtt.AttachName = "ref2.dgn" Then oAtt.UpdateOrder = 0 Next End Sub