XF 1.5 Excluding One Node from 'New Posts'


I'm hopeful someone can kindly assist with a pretty basic question - as entitled.

When members select 'New Posts' in the Navbar, I'm wanting this page to exclude one forum/node.

Is this possible? If not as standard, if anyone is aware of a resource that will help, I'd really appreciate it if you could signpost me.

I've spent an hour or so looking without joy!