Thanks @emmanuel
I can see, I think, the issue with looping workflows.
But there does seem to be a well defined use case here that Blockspring could handle well.
Anyway…here is a possible way to do this…
I have an import page with a counter on it, that imports that counters #itemno from the Google Sheet every 5 seconds, then updates the counter, and displays the imported row on the screen (so I can see it working).
Ok, it is a bit slow. But it works.