How do I connect multiple computers to the New Apple TV that are not using the same Apple ID?

[iMore Question]

We have a conference room and from time to time presentations will be given by users with their one laptops/Mac books and such. How will they AirPlay their media to our Apple TV when they will not be on the same Apple ID that the Apple TV is using. The Apple TV was purchased to allow users to wirelessly connect to our flat screen TV