Or "T" (English letter).
In general, see the second page, starting with post 27: /topic/3747/
Anyway, all these things related to the video should be saved into an archive along with the map after closing the editor, and you can then view it using WinRAR as a text file.
P.S. Of course, the question arises whether it wouldn't be easier to do it the old way than go through this hassle, but I'm just saying what I remember.