How to enable Screen Space Reflections in HDRP 12?

Hey everyone, so I created a new HDRP project. I "Inspected" the DefaultHDRPAsset and checked SSR and Transparent under the Lighting rollout. Then I went to Project Settings > HDRP Default Settings > Camera > Lighting, but SSR is grayed out. It mentions that MSAA is enabled, that's why it isn't working. Where do I disable that? Thanks.