Empress Effects Tremolo2 - Manual (Page 5)

To load a preset, use the "tap|preset" stompswitch to scroll
through presets sequentially. The LEDs will blink indicating the
preset is ready to load. Press the bypass switch while the LEDs are
blinking to engage the new preset.
To save a preset, set the Tremolo
2
to the settings you want to save.
Use the "tap|preset" switch to scroll to the color where you would
like to save the preset. Then, while the LEDs are blinking, hold
down the save button and press the "tap|preset" stompswitch.
Changing the number of available presets: The Empress Tremolo
2
ships with 4 available presets, but you can use between 1 and 8
presets. Please see the "Advanced Configuration" section on how to
change the number of available presets.
While in Preset mode, use the rate knob or an external tap switch to
adjust the speed of the tremolo.
To modify tremolo parameters away from their saved value, simply
move the knob or toggle.