Left my original macros in place but anticipated they would require changing.
Tried them with the extender & they appear to work as before (quite surprised!)
The extender is crashing from time to time & initially I started doing a reset 981 and uploaded again. However I have left it, untouched, the last couple of times when it appeared 'dead in the water' - and after a few minutes it came alive again with all the lights on under its own volition.
Don't want to proceed further until I understand the reasons
Ron