This is the default layout for the Ergo33. It mostly follows the left side of a normal keyboard, except since there is an extra column on the left, 0 is above TAB and the left column is:
ESC
Y
H
N
GUI (Win)
The encoder acts as a mouse scrollwheel and encoder press is Enter. On the top LEDs the 1st is a layer indicator and the 3rd is a caps lock indicator.