zone triggers?

[Davi8d]

I know how to set triggers tied to certain things, like pickup, healthchanged and this like that. But I want to create a zone.

Basically I want to activate something just by walking in an area.

Anyone know how to do this?
Thanks.

 

[Cunbelin]

create a brush, texture it with the "trigger" texture, then select it and hit control-T, then choose trigger_once or trigger_multiple. If you need help setting up the entities use the help button.