here's a quick preset from left to right in Play Mode (hold right footswitch 'til you see "E:MAJ":

1. turn the encoder to Diatonic

MIx to 50

Pitch Mix all the way to the left

Set pitch A  to 3rd's (About 2 o'clock on the dial)

Set Delay A to zero  to five Miliseconds

Press the middle button and play the root note and set the Scale knob to the scale the song is in,

Set Xnob and/or Ynob to Zero