DL4 Looper setup with 4 button performance control when you switch to performance mode.

Left: Record
Middle: Play/Stop
Right: Retrigger playback
Ext: Octave up

Similar to my other DL4 patch but I’ve used a keyboard instead. It shifts your loop up chromatically. So you have a 12 tone keyboard. Plus octave up raises it so you have an additional 12 tones. Have fun!