Can't 'Set Affects World' on Spotlight

[eco_bach2]

Anyone able to tell me why I can’t ‘Set Affects World’ on a Spotlight?

It seems I can only Get that property.

[midgunner66]

Use “Set Visibility” instead:

[eco_bach2]

Thanks.
But the reason I need ‘Affects World’ is that after a bake using volumetric lights and Exponential Height Fog for the volumetric effects to show you need to toggle the ‘Affects World’ switch on each light.