I have 3 axis YOOCNC 3040 and would like to add 4th axis. Need help and guidance on how to modify the controller box to add the stepper driver ?

I am planning to buy a the rotatory axis from ebay

https://www.ebay.com.au/itm/16513829...Bk9SR7a-u6vtYg

Could anybody let me know how to wire this driver to controller board.