you mean selecting 1 part of a brush? alt + ctrl + shift + left mouse click on your brush
Mapper's Mistakes: A Look Back At Where We Have Grown
SiliconSlick
(SiliconSlick)
#42
These were Quake1, but are still somewhat applicable
(in different terms).
http://students.cs.tamu.edu/jkp2866/BrightCTF/problems.html
SiliconSlick
