We have a licensed version of LR 12.
Wanted to know will LR 12 allows the same user to login at different time i.e will different logins of the same user be treated as same session of different session.
Not sure what you mean here. are you asking if you can simulate the same user logging into your application simultaneously from different locations? or logging out and than logging in again?
what is the business process you are trying to Load test here?
generally speaking, a session is for a single user so if a user will login from several computers to the same application, it will be a session per login.
hope this helps,