Third column on all pages

Good Morning, hope all are well.

This isn’t a huge problem, just really annoying for me.

I Generated the template using the yves generator and had a play around to get what I wanted. The problem is, no matter where i search i can’t find info on having my third column appear on all pages, eg, if I click through to “party” the third column disappears. I am gueeing this is one simple line of code I am neglecting to write somewhere, if anyone could help me out it would be much appreciated.

Cheers,

dan