MediaLab can not run a proper IAT on its own, but DirectRT can. Check this out and see if it helps:
www.empirisoft.com/support/showthread.php?t=106

It is TECHNICALLY possible, but the design would be tedious and millisecond accuracy in display timing and RT measurement wouldn't be there. See:
http://www.empirisoft.com/support/showthread.php?t=15