@ustk Unfortunatley not in this case. It seems to be a matter of how the API is setup more than anything. It appears to be made on the assumption that there is only ever one Audio Buffer in a network. There's no way to grab a buffer's index, though it's very easy to add more than one in scriptnode.
I did just realize that I can interface with them via the AudioWaveform component and setting the SampleIndex, so this might provide me the alternatives I need...
.Screenshot 2026-01-30 104152.png