panasonic pedelec pushing assist power lever

[Biged]

On the Agattu a couple years ago there was a push assist lever available as an accessory, this looks like its not available now, well not here, but its still available in Germany.
Does anyone have instructions how to fit one of these?
The instructions are not available from the German seller

 

[JohnCade]

I think I saw a couple of threads on this subject here when I was looking for something else. If you do a search you should turn them up.