Hii, sorry for getting late to you. I believe that is refering to the SKippable Start Cameras hack/setting in the launcher.
You can enable it by going to the Settings tab in your Launcher then scrolling down until you find the setting.
Correction: that hack is banned. The rules are referring to an ingame glitch which is tutorialed here:
This glitch can be carried through to the main menu, therefore you can activate it, exit to the main menu, load the game, and then continue.