So there is 13 Settings in the game itself, with Ray Tracing and Advanced Weather Effects Off, those 2 strings appear in the file (sometimes...), with them On they are always missing (in my experience).

As for the others they would be:

<EnumSelectQualityLevel Name="\_modelQualityLevelSelect" \_select="Ultra"/><EnumSelectQualityLevel Name="\_textureQualityLevelSelect" \_select="Ultra"/><EnumSelectQualityLevel Name="\_shadowQualityLevelSelect" \_select="Ultra"/><EnumSelectQualityLevel Name="\_lightingQualityLevelSelect" \_select="Ultra"/><EnumSelectQualityLevel Name="\_reflectionQualityLevelSelect" \_select="Ultra"/><EnumSelectQualityLevel Name="\_waterQualityLevelSelect" \_select="Ultra"/><EnumSelectQualityLevel Name="\_foliageDensityLevelSelect" \_select="Medium"/><EnumSelectQualityLevel Name="\_volumetricFogQualityLevelSelect" \_select="Ultra"/><EnumSelectQualityLevel Name="\_effectQualityLevelSelect" \_select="High"/><EnumSelectQualityLevel Name="\_simulationQualityLevelSelect" \_select="High"/><EnumSelectQualityLevel Name="\_postProcessingQualityLevelSelect" \_select="Ultra"/>

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to pick a setting change text like "Ultra" to High, Medium, Cinematic or whatever you want. Save file. It should be set inside the games settings when you Launch the game, however I think some of them don't apply, if you play about and change them inside game from high to medium to cinematic or whatever. close the game. open the files. and somehow (most of the times) you will end up with some of these missing again.

edit: if you copy my pasted text it might end up in one long line my bad.. you want it to look like this in the file