The symbol dial system allows you to easily set up combination dials with any symbols of your choice. You can use numbers, letters, and even characters from different languages.
Symbol dials can be used in puzzles where players must figure out the correct combination to enter.
As an alternative to the number input which forces you to use all of the digits from 0-9, this system allows you to specify which numbers you want to use. For example maybe you only want 1-5 to be available for selection.