Question Expose other options in the master node

Hi guys,

How can I expose the options of Preserve Specular Lighting in the Lit Master Node?

I can see this option available for regular HDRP/Lit mat but not for my custom shader.

I can see this option available in the graph editor as well, why is this option hidden away?

Thank you

 

Code (CSharp):

1. [NoScaleOffset]  Texture2D_F08FA7D5 ("Dissolve Texture", 2D) = "white" { }
2. Vector1_9D0C9F66 ("Display Height", Float) = 0.000000
3. Color_DF9AC0A0 ("Base Color", Color) = (1.000000,1.000000,1.000000,1.000000)
4. [NoScaleOffset]  _BaseColorMap ("Base Map", 2D) = "white" { }
5. [HDR]  Color_63AA71C6 ("Scan Line Color", Color) = (0.000000,0.234173,22.714781,1.000000)
6. Vector1_E1E73288 ("High Light Thickness", Float) = 0.200000
7. [HideInInspector]  _EmissionColor ("Color", Color) = (1.000000,1.000000,1.000000,1.000000)
8. [HideInInspector]  _RenderQueueType ("Vector1", Float) = 5.000000
9. [HideInInspector]  _StencilRef ("Vector1", Float) = 0.000000
10. [HideInInspector]  _StencilWriteMask ("Vector1", Float) = 6.000000
11. [HideInInspector]  _StencilRefDepth ("Vector1", Float) = 8.000000
12. [HideInInspector]  _StencilWriteMaskDepth ("Vector1", Float) = 8.000000
13. [HideInInspector]  _StencilRefMV ("Vector1", Float) = 40.000000
14. [HideInInspector]  _StencilWriteMaskMV ("Vector1", Float) = 40.000000
15. [HideInInspector]  _StencilRefDistortionVec ("Vector1", Float) = 4.000000
16. [HideInInspector]  _StencilWriteMaskDistortionVec ("Vector1", Float) = 4.000000
17. [HideInInspector]  _StencilWriteMaskGBuffer ("Vector1", Float) = 14.000000
18. [HideInInspector]  _StencilRefGBuffer ("Vector1", Float) = 10.000000
19. [HideInInspector]  _ZTestGBuffer ("Vector1", Float) = 4.000000
20. [HideInInspector] [ToggleUI]  _RequireSplitLighting ("Boolean", Float) = 0.000000
21. [HideInInspector] [ToggleUI]  _ReceivesSSR ("Boolean", Float) = 1.000000
22. [HideInInspector]  _SurfaceType ("Vector1", Float) = 1.000000
23. [HideInInspector]  _BlendMode ("Vector1", Float) = 0.000000
24. [HideInInspector]  _SrcBlend ("Vector1", Float) = 1.000000
25. [HideInInspector]  _DstBlend ("Vector1", Float) = 0.000000
26. [HideInInspector]  _AlphaSrcBlend ("Vector1", Float) = 1.000000
27. [HideInInspector]  _AlphaDstBlend ("Vector1", Float) = 0.000000
28. [HideInInspector] [ToggleUI]  _ZWrite ("Boolean", Float) = 0.000000
29. [HideInInspector] [ToggleUI]  _TransparentZWrite ("Boolean", Float) = 0.000000
30. [HideInInspector]  _CullMode ("Vector1", Float) = 2.000000
31. [HideInInspector]  _TransparentSortPriority ("Vector1", Float) = 0.000000
32. [HideInInspector] [ToggleUI]  _EnableFogOnTransparent ("Boolean", Float) = 1.000000
33. [HideInInspector]  _CullModeForward ("Vector1", Float) = 2.000000
34. [HideInInspector] [Enum(Front, 1, Back, 2)]  _TransparentCullMode ("Vector1", Float) = 2.000000
35. [HideInInspector]  _ZTestDepthEqualForOpaque ("Vector1", Float) = 4.000000
36. [HideInInspector] [Enum(UnityEngine.Rendering.CompareFunction)]  _ZTestTransparent ("Vector1", Float) = 4.000000
37. [HideInInspector] [ToggleUI]  _TransparentBackfaceEnable ("Boolean", Float) = 0.000000
38. [HideInInspector] [ToggleUI]  _AlphaCutoffEnable ("Boolean", Float) = 0.000000
39. [HideInInspector] [ToggleUI]  _UseShadowThreshold ("Boolean", Float) = 0.000000
40. [HideInInspector] [ToggleUI]  _DoubleSidedEnable ("Boolean", Float) = 0.000000
41. [HideInInspector] [Enum(Flip, 0, Mirror, 1, None, 2)]  _DoubleSidedNormalMode ("Vector1", Float) = 2.000000
42. [HideInInspector]  _DoubleSidedConstants ("Vector4", Vector) = (1.000000,1.000000,-1.000000,0.000000)

I dug around the compiled shader and I still can't find this Preserve Specular Lighting

 

Just checked in HDRP 10.3.2, this option exists but on material only.

 

I'm on 7.3.1. Guess it's time for an upgrade.
Thank you!