As this is could get lengthy, it might be easier if you post what you are looking to do. firm allows you to copy files from an automation boot to your production (OS) partition. I use it to "inject" drivers and the correct HAL for the machine I am imaging. You can also use the firm command to remove files from the production partition. Examples are below from my linux scripts:
firm -recurse ./drivers/d630 prod:\drivers
firm delete prod:\windows\system32\hal.dll
firm copy ./drivers/hal/halmacpi.dll prod:\windows\system32\hal.dll
I personally don't do anything with tokens, but depending on what you goals are, they can be very helpful. Some of the commands (such as firm) have extensive help if you type the command with nothing after it.