Yes, we had discussed that earlier. I still think having a node for the IOMultiplier is a good idea since it allows you to control the edges better. It certainly should look different than the regular operators, maybe just a small circle. However, it may get parameters, e.g. the copy type: copy reference / clone / clone and materialize.
I guess that most users will use default config of the multiplier anyway, and thus a small circle would clean up the processing workflow. And in the 1% of all cases where someone needs a non-standard multiplying-behavior, he/she could use the special operator.
Maybe we can skip the dialog.