Pigtronix Echolution-2 Deluxe - Manual (Page 8)

E2R Remote Switch
Preset Load using the optional E2R Remote Switch
SHORT PRESS on the left footswitch of the E2R will instantly load
preset 1 in the current bank.
SHORT PRESS on the left footswitch again will instantly load
preset 2 in the current bank.
LONG PRESS on the left footswitch moves up one bank (indicated
by upper right light bar).
SHORT PRESS on the right footswitch of the E2R will instantly
load preset 3 in the current bank.
SHORT PRESS on the right footswitch again will instantly load
preset 4 in the current bank.
LONG PRESS on the right footswitch moves down bank (indicated
by upper right light bar).