uint32 bUseInsetShadowsForMovableObjects: 1
Stationary lights only: Whether to use per-object inset shadows for movable components, even though cascaded shadow maps are enabled. This allows dynamic objects to have a shadow even when they are outside of the cascaded shadow map, which is important when DynamicShadowDistanceStationaryLight is small. If DynamicShadowDistanceStationaryLight is large (currently > 8000), this will be forced off. Disabling this can reduce shadowing cost significantly with many movable objects.