However, why would you do that if you are going to deploy the same image on many different computers?
Just ignore that option, there is no need to fill it up, that is for what you know
As far as I know, you can only deploy one license key on one computer only.
But no need to fill it up.
All you can do, is to use 1 or all options, whatever fits all your needs.
About the license, As I have skipped Windows 8, I can tell that, once you the device is on line, it is activated in the firs 1 or 5 minutes, if the speed and computer are fast.
On devices hardware licensed since Windows 8, there is no need for a new Windows 8.x, 10 or 11 license, for Windows 7 devices you can use the old license: pro and ultimate for 10/11pro editions, starter to home premium are valid for Home or Core editions, devices licensed for Single Language edition (starting from Windows 8) the Windows 10 do a smooth switch to Single Language edition.
I know because I have it done successfully, about Windows 7 to 11 a test on 11 years old laptop was done but didn't keep the 11 edition.