Small correction, 3.7 GA is also available for trial downloads.
Are the licenses that are purchase for ME per person or per machine. We are thinking of employees that work from their home. Will they be needing more than one license?
The licenses are per user. If you have users that work at home, they may also install their license key there as long as only the person to whom the key is issued is the one using it and only one instance is running with that key, you’re fine.