This readme explains viewer.cfg for Q3A by Mike Cronin.
email mcronin@inlandprod.com

Installation:

Copy viewer.cfg to your BaseQ3 folder in your Q3A directory

Operation:

Load any map from the console by typing
/devmap xxx
xxx being the name of the map you want to use

Execute the config from the console by typing
/exec viewer.cfg

Key Pad Minus toggles timescale
Key Pad Plus scales time up
Key Pad Enter scales time down
Key Pad Home(7) toggles wireframe on and off
Key Pad 5 toggles thirdperson view
Key Pad left(4) and right(6) orbit the camera around the model
Key Pad Up(8) and Down(2) zoom in and out
Key Pad Ins(0) toggles low medium and high LOD's
Key Pad PgUp(9) toggeles normals

You can load a new model from the console by typing
/model xxx
xxx being the name of the model you want to load.
Press tab after executing to load the new model.

Have fun!