I’m not sure where you’re trying to set this, but it does work. Both for the “Indirect Lighting Intensity” setting in the directional light, and the setting in the post process volume (though I do not recommend this, as it removes all indirect lighting including in surface lightmaps and from all lights)
Nevermind, I see what you mean. Indirect lighting intensity does remove indirect light from the VLM, but it doesn’t remove direct light when the light is set to static… I suspect you may need to modify the engine in order to accomplish this, but I’m not sure how.