I need help changing my games output using .ini

Hello,
I have 2 games I made for VR in 4.18.2 and didn’t keep the source materials, I want to publish these on Oculus as free games, (for my portfolio, etc) but I need to make some changes to how they load,

  1. Where do I make changes to ini files, so that they are actually reflected when the game plays?

  2. Is there a good INI command I can test to see if it is ‘listening’?.

  3. Is there anywhere, a list of ini options that work with Unreal?

  4. Can I change Game Optimization options in INI (Such as Compression scheme, Forward Rendering, Stereo Instancing etc…

THANK YOU! HAPPY HOLIDAYS!

Epic has apparently given up as a company,. I barely see any questions answered anymore,. I have NEVER seen any Epic people here or at Forum,… So sad… If I worked at Epic, I’d be helping so many people they would have to give me my own section of the forum. Epic employees seem to have checked out,…