I believe you can access them using Get Game User Settings. at least for the quality values, not sure about getting the Global Illumination / AA method.
Thanks for your reply @Extrone . I searched online to set these settings and all I found was using console command. I’m actually using GAME USER SETTINGS for other settings but did not try that!
I looked into your suggestion but it looks like you can only set and get the QUALITY values, not the methods (which is what’s done with the commands). This does not seem to be the same thing (the possible values don’t match)
Please see attached.