EFMax

Hi. I have just purchased the CarPort Pro-Modul CAN - SOFTWARE. I was wondering does it come with any instructions beyond the basic installation of the product. I am guessing that this is too sensitive an area to just let anyone loose on their car with, so having run a full scan on a 2nd hand car that I have just purchased, I would like to know more about the error codes, how to delete them and to alter a few things to my customised way... so is there a manual that I have not seen within the download or do you purchase this as well, any feedback appreciated. From trial and error I have worked out how to delete codes, but I would like to know how to alter codes but first need to understand what the code options are