I am fairly new to this and have a simple question that I have not been able to find the answer for.  I am using 4 moonlander 2 devices on litecoin pool and would like to set up to use different worker for each device.  Do I need to create a separate bfgminer start file for each device/worker?  If so, how do I show the device in the start file instead of "all".  I am using a Mac.
Thanks, help will be appreciated.