You can add members as Billing Administrators to the license portal and that will allow them to use the license. Just add their email in the "add a billing contact" field and it will send an email to the person notifying them that they've been added.
Each time someone uses the license the MAC address of the server its installed on will be recorded.
There's currently no way to create a unique license for each person, but that's an enhancement we can look into adding. Would just need to think about the best way to do that...
Let me know if you have any thoughts or questions.