Hello Dnj!
I plug in a keyboard (for data!), and use the number pad. By hitting any key (not number) 3 times, you enter the registration number selection. Here you enter two digits for bank folder, then a number 1-8 for the specific registration, following enter. This brings you straight to your registration and is fast and easy.
However, on the Tyros there is no PS/2 port.

Regards,
Roy-Andrč.
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Roy-Andrč