DigiTech RP200 User Manual page 10

6. Display - The Display provides information for different functions depending on the mode
that has been selected. In Performance mode, the Display will show the currently
selected Preset name and number. In Edit mode, the Display will show the name and
value of the parameter being adjusted. In Tuner mode, the Display will show the
note played.
7. Store - The Store button is used to save your custom edits to the user Presets.
8. Expression Pedal - The Expression Pedal adjusts RP200's Volume or the assigned Effect
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Parameter in real time. Almost every Parameter is available for
Expression Pedal control.