This message was posted on behalf of Intel Corporation
Thank you for joining the Intel® NUC Community. I will do my best in order to help with your ITK inquiry.
The first thing I would like to mentioned is that you are following the right steps in order to success with the customization. Now, regarding your questions I was unable to find a way to document or to script all the steps taken and configurations set, this needs to be done manually. The customization cannot be loaded from a configuration file, once you have the .bio file this can only be loaded onto other devices. And, to your last question there are no mechanized ways to extract the customization from a new bio, like mentioned before once you have created the .bio file this can only be loaded onto other devices.
If you have more questions, please let us know.