Multiple video's at the same time ?

[vanhaze]

Hi Reaper Video Guru's (Jon: hope you are reading this!),

Situation:
I received multiple video files from a client.
These files were made by several people, singing along with one and the same verse from a commercial track.(so the files contain video AND audio).

Now i bring these videofiles into Reaper, each on their own Track.
I "lip sync" them.
Now, i want to have shown all these video files at the same time, each video taking up a part of the video screen.

Is this somehow possible in Reaper ?