Hi @topkoa , thanks for the suggestion.
As it currently stands, the flow file format does not provide a way for wires to have any sort of property - they are simply an indication that two nodes are linked.
There have been various suggestions over time for things that could be done if wires had properties, but none of them has been compelling enough to justify the disruption a fundamental change to the flow file format would bring.
So at this time, it isn't something we'd consider. But I do expect at some point in the future we'll properly explore adding properties to the wires at which point this idea could be considered.
Thanks!
