Yeah Mark is right, that is a 810 for sure. It looks similar to a 410, but the 410S/Suds saver model does not exist, neither does the 810S. The extra keys were for the Soak option, which allowed you to select if you wanted it to carry over and continue washing after the soak, or just to drain out the water and finish once the soak cycle finished.
The extra rinse feature started to become prominent in the LAT series machines, but the only A1000 series machine that offered an extra rinse option other then the A9900 was the non-digital A9800. I always wondered why MT never had extra rinse options on any of their machines for damn near 30 years while other manufacturers like GE, WP, KM etc... all had an extra rinse option.
If I lived in the US, I would love to have this machine! Silly Canada.