Light linking in Unreal is under advanced settings. Simple to do, but there are a few key limitations. LINKS BELOW:
(NEW) RELATED: Faking Shadows (Unreal 5) • Fake Shadows and Colored Light Function
Also - you might also use "levels as layers" to break out lighting solutions on objects:
• Levels as Layers (VP) Unreal
Unreal Lighting Channels Documents: https://docs.unrealengine.com/4.26/en...
Unreal Lighting CHAPTER: • 03 Unit V1 - Lighting Chapter Start
#LightLinking