How many licenses come with Autodesk and PTC with the FRC Rookie Kit?

We registered an account on autodesk.com/first, and it appeared that we could download the programs as much as we wanted to; however, there was only one serial/license key.

How many licenses come with the program in our FRC Rookie Kit? Also, do we need to keep making new accounts at autodesk/first to obtain more serial keys, or can we use the same keys for all copies?

Thanks in advance.

Usually, they only give you one key, but from my experience, it can be used multiple times. Whenever I have downloaded any version of inventor from the education community, I am given the same serial number.