How to switch back to default settings after selecting one of the registration banks?(ct-x5000/ct-x9000in)

[Dapso]

After I selected one of the registraion banks I want to undo and go back to default settings(previously selected tone, effect settings etc) without turning off the keyboard. Pressing the  selected registration bank button again doesn't do it.How do I do it?

[casio_style]

There is no step back, so it is not possible to return to the previous settings, so the settings to step back must first be saved in the registration bank.

[Brad Saucier]

Press the function button, go to other, reset, settings reset.  This will reset all settings but won't delete your user data.  If you want to save these default settings as a template, store it as a registration as mentioned above.