Er, Lance, I'm a bit embarrassed now. I just realised that the Variables and Parameters support in extracted views is coming in IC616 ISR3 (I was doing some testing before going on holiday in August). So it's not there yet. This is due at the beginning of November.
Not sure what's "ropey" about it, but maybe we can take that offline...
So no, I'm not talking about the LDE flow.