I have discovered valve's trick to making the rollback and roll forward zones appear on your hud. If you check the developer wiki on path_track, you will notice the flags section. * 1 : Disabled * 2 : Fire once * 4 : Branch Reverse * 8 : Disable train * 16 : Teleport to THIS path track If you open up hammer, and check the flags section, you will notice an additional flag called Rollback zone on HUD (Payload Race). This flag's value is 32. What they don't tell you is that an additional value exists, one that makes the cart roll forward. This value is 64. You will have to set this flag manually in your vmf. Just search for your relevant path_track and change the number yourself. The one bug that I know of right now is that you are limited to five of these zones, which sucks for me because I want seven. Happy Mapping! Note: This does not actually make the cart roll forward or back, you have to do that some other way, which I don't know of.