Multiple video streams without Ogg container

[edv]

Is it possible to specify in a .bsi file multiple video files to use, just as it is possible to specify multiple audio files? It seems that if I use an OGM file with multiple video streams, I can cycle between them, but I can't find any reference to a way to specify multiple video (e.g. AVI) files in a BSI file. I can't/don't want to make OGM files for various reasons, and if this is as simple as adding the correct line to the BSI file, I'd love to know it (I've tried using things like "FName2=Stream2.avi" and such, but they don't seem to do anything). Thanks!