So i am making a Gatton CNC and i decided to use a Panucatt

So i am making a Gatton CNC and i decided to use a Panucatt Azteeg X5 GT Smoothieboard. I chose the Bigfoot 109A stepper drivers, and as i have 2 Y motors i would like to connect 1 to the Y on the board and the other E1 and enslave the other Y master. What is the easiest way to do this?? Anyone’s help is appreciated. I am using the @Mark_Carew_OpenBuild high torque Nema 23 motors.
https://www.youtube.com/watch?v=Es520U0mlOk

https://plus.google.com/u/1/+EricLiensMind/posts/FHqHt5R6VsJ?fscid=z13izniixp2oi3hup23qs3cw1mnkhr5dz.1503285824702631