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Number Entry (Mastermind GT/10 and Mastermind GT/16)
When editing numbers, the Mastermind GT/10 and Mastermind GT/16 display the following menu:
You can adjust the number using the minus / plus value buttons in the bottom row.
Press Done when you’ve finished editing the number. The number will be saved and you’ll be returned to the previous
menu.
Text and Number Entry (Mastermind GT/22)
When editing names and certain other parameters, the Mastermind GT/22 uses the footswitches as a keyboard to allow
you to type in letters and numbers.