GMOD Deathrun server help

Hi, I Am WhatACat? I own a small server 21 slots called TGRC death run and for the longest time, I have been trying to find help. What may you ask? Well, I've been trying to get secrets to work on the map. Like IceWorld behind the wall at the falls to next stage or in atomic the lambada symbols where you can jump at and get a secret. If anyone knows reply here or pm me! I am also available on [disallowed website]

Make your own map with sourcesdk to add things like secrets and other stuff.

Map making tutorial.