Thank you very much for your reply. I'll just go ahead and buy one, for 230 euro it's still not that much money. I'll try your program and get back to you with the results.
Sorry if this has been answered before, but I can buy a like new body of the GX7MkII i.e. Japanese version of the GX80/85 for a very reasonable price and wonder if your program will work on this too.
Or if the camera only understanding Japanese will make it not recognise the English commands.