How to open the demo controls in CS:S
Type demoui in your game console, or press Shift+F2 while watching, to pause, slow down or skip through a demo.
demoui
Shows or hides the demo playback controls.
demoui Examples
demoui Open demo controls.
What it does
Lets you pause, fast forward, slow down and jump through a demo. Shift+F2 also opens it while watching.
The game's own description: Show/hide the demo player UI.
Use it in your game
Type it in your own game console: turn on the developer console in the game's settings, then press the key under Esc. To keep it, put the line in cstrike/cfg/autoexec.cfg.
Your own
CS:S server.
From $0.03 an hour, only while it runs. New accounts get 6 free tokens.