That script doesn't work because the game uses a different way for player physics, not the stock UE4 physics. That's also why the script is grayed out (gray color). There's NO FLY that works for this title. Regarding the rest, I suggest you follow the normal story progression, as there's a lot of people having reported broken features by bypassing areas when you don't have a certain ability. Feel free to experiment.
How to use this cheat table?
- Install Cheat Engine
- Double-click the .CT file in order to open it.
- Click the PC icon in Cheat Engine in order to select the game process.
- Keep the list.
- Activate the trainer options by checking boxes or setting values from 0 to 1