This is a Remixed Version of https://www.thingiverse.com/thing:2368534 to be Mounted on the Left Side of a AnyCubic I3 Mega.
I did not Like the Touch Display so I just disconnected it and Mounted this.
You also need to longer Screws to fix this on the side.
Sadly I cannot Help you with the Firmware Settings as I have Changed my Mainboard in the Printer to a RUMBA to get Multi-Extruder Running while not loosing the Dual Axis Homing.
Print in the Position like in the Screenshot with Supports everywhere.
SketchUp File also provided