I've been chatting by email with Freek Heite about his Elektor system, and he gave me a link to the Elektor manual including the listing (in German)
https://we.tl/t-xMwr5osiqT * this is a temporary store & might be gone in 7 days *
and also to a site and a machine I've not seen before:
http://www.wolfgangrobel.de/sbc/scmp.htm * Note the the menu on the left has further SC/MP links *
Interesting eh? Many thanks to Freek for these pointers
Cheers
Phil