It's done by adding this to the txi:
   proceduretype cycle
 defaultwidth 256 (width of single frame)
 defaultheight 256(height of single frame)
 numx 2(both this and numy are for how many columns and rows you want to have)
 numy 2
 fps 48(how fast it goes through the frames)  
 The texture would look like this(with the above -along with the two lines to make sure the saber appears right):  
http://img.photobucket.com/albums/v635/KomaB1ack/BlueSaberTex.png)  
 Though it would get a lot more complex for something like a computer panel, if one wanted a lot of detail.  
 This is what I was referring to, thanks.