XF 2.2 Nested sub forums main index

[Seeker-Smith]

I have two sites one has the sub forums nicely nested within a category on the main index. The other does not. I've been searching for the setting but I'm not sure what this might be called so I've had no luck.

Any suggestions please?

 

[Paul B]

That controls the sub forum display.

 

[Seeker-Smith]

Awesome, many thanks!