Get the maintenance or subscription key
You get the maintenance or subscription key from the Four Js website to ensure you have a valid key to install or update your product's license.
If you can use the license controller -m
          auto option to install the maintenance key via the internet, (for
        example fglWrt -m auto), then you do not need to perform this
        task. 
Before you begin:
    You must also have the following:
- Customer code
 - License number
 
Next, you need to install the maintenance key.
