Searching for this, I see that the multi-instance wizard has recently had some major improvements, but couldn't find anything for my use case. I have an array of tags in the PLC that show up to the OPC browser as Tag[0], Tag[1], etc., and UDTs that have a parameter that I'd set to those strings, to substitute in the URN path.
As far as I can tell, the multi-instance wizard can partially fill those parameters with "Tag[x" (Or "x]", but there is no way as of currently to do the full "Tag[x]".
Is that correct?