How to setup Smoothie config for 5 steppers

My version 1.1 - 5 axis smoothie board will be controlling a Pick and Place machine

I have one X axis ball screw - M1

I have two Y axis ball screws - M2 and M4
m2 and M4 will be slaved together

I have one Z axis ball screw - M3

I have one left over axis M5, that will have a small stepper attached later to operate a component feeder device

I have already jumpered the pins below on the smoothie board below according to the directions on this page
[smoothieware.org]
EN2 to EN4
ST2 to ST4
DIR2 to DIR4

It looks like M4 and M5 are setup for hotend motors in the stock config

I am confused as to how to set up motors 4 and 5 in the smoothie config file

I have setup X, Y1 and Z in the config like this

# X axis
alpha_step_pin 2.0 # Pin for alpha stepper step signal
alpha_dir_pin 0.5 # Pin for alpha stepper direction, add '!' to reverse direction
alpha_en_pin 0.4 # Pin for alpha enable pin
alpha_current 1.5 # X stepper motor current
alpha_max_rate 30000.0 # Maximum rate in mm/min

# Y axis 1 - M2 and M4 are slaved
beta_step_pin 2.1 # Pin for beta stepper step signal
beta_dir_pin 0.11 # Pin for beta stepper direction, add '!' to reverse direction
beta_en_pin 0.10 # Pin for beta enable
beta_current 1.5 # Y stepper motor current
beta_max_rate 30000.0 # Maxmimum rate in mm/min

# Z axis
gamma_step_pin 2.2 # Pin for gamma stepper step signal
gamma_dir_pin 0.20 # Pin for gamma stepper direction, add '!' to reverse direction
gamma_en_pin 0.19 # Pin for gamma enable
gamma_current 1.5 # Z stepper motor current
gamma_max_rate 300.0 # Maximum rate in mm/min

How do I get rid of the hotend config lines and set up M4 and M5 as regular steppers like the 3 axis shown above?

Thanks for any info on this

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My projects are listed here - [www.el34world.com]

I Think I found the info
M4 is called delta
M5 is called epsilon

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My projects are listed here - [www.el34world.com]

Mystery solved
M4 was dead on this smoothie board

I ended up using an external driver paralleled to the Y axis (M2) on the smoothie board
Got it all running perfectly
I shot a video of the twin Y axis in motion

Here’s the youtube video link of my build
[youtu.be]

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My projects are listed here - [www.el34world.com]