11xxxxxx: Save the 256-byte memory page currently selected on the SW15-8 switches to file #xxxxxx
10xxxxxx: Load the 256-byte memory page currently selected on the SW15-8 switches from file #xxxxxx
That means you can set toggles 6 & 7 up, then select a file number from toggles 0-5, press AUX1 down and your 256-byte program is saved as file #xxxxxx (whatever number you entered).
You can load them similarly, leaving SW6 down.