Tripwire Interactive Forums

hello,
I'm hoping someone can help me here, until 3 days ago i had never used the unreal eidtor before, however I seem to be doing alright so far. checking back and forth through the tutorials i've found and reading responses on forums i have been able to get a basic grasp of how to make a map for killing floor...however one little problem has croped up! as i have a large complex map built with six trader stations, finding them when running around the map is going to be difficult without that glowing trail thing that leads you to the active trader, unfortunately for all the tutorials and forum responses I have read nowhere have i seen how to set these trader path thing up.....

i really hope someone can help me here as its the one thing that has me banging my head against the screen.

thanks in advance!