Okay, not only did I find screenshot but I also find interview with Lead level designer about the tool, which I put up here!
Have fun read! 
GORBENKO REPORTINGS!!
My name is Dimitri Gorbenko and I work at Massive Entertainment, but am also spy! :D I will tell all secrets about this place and YOU will read! Thank you! :D
1 response so far ↓
tIFFANI // November 12, 2007 at 7:27 am
Both sides have identical units- that’s no good