What are most used "note" for look development in UE4 should i use?

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Hi guys,
What are most used “note” for look development in UE4 should i use?

For example:
I have a 3D Asset (included Albedo, Roughness, Metallic, etc…) and i would like to adjust them so i can see inmediately.
and which note i can use for indivitual Map?

Thanks for advise.