Need race forge help.

I need help setting up checkpoints on my race map, every time I run the game all the checkpoints show at once and once someone runs through one the game ends, how do I set it so that they spawn in the order that someone drives through them and how do set a checkpoint that won’t end the game except on the lap chosen in the game description?

You must apply different Spawn Sequence values to each checkpoint object. Number each of them in ascending order.

(TIP: If your track has branching paths, you can give multiple checkpoints the same Spawn Sequence. Players will be able to trip any of those checkpoints to advance to the next one(s).)