ScriptableRenderPipeline/com.unity.render-pipelines.high-definition/HDRP/Editor/Camera/HDAdditionalCameraEditor.cs

using UnityEngine.Experimental.Rendering.HDPipeline;

namespace UnityEditor.Experimental.Rendering.HDPipeline
{
    [CanEditMultipleObjects]
    [CustomEditor(typeof(HDAdditionalCameraData))]
    class HDAdditionalCameraDataEditor : Editor
    {
        public override void OnInspectorGUI()
        {
        }
    }
}