Nice one! That is exactly what I want to do Wasabi Tofu...

I didn't realize that you could do surface sectors on stopovers in your origin continent. The change of terminology from 'segments' (i.e. single flights) to 'stopovers' in the country of origin meant that it wasn't so explicit.

I've no real need to go to LHR so I'll be delighted to cut it out if it saves a bit of hassle at the end of the trip.