Changing layout and titles of nav buttons

good morning all,

I’ve been tasked with changing the layout and some of the titles of the nav buttons and a few of the pages in the webstore.

im specifically looking at changing the name of our gift cards and subscription button as well as making a few adjustments to their landing pages. I thought i was working in the right area (tmnavbuttons.html) but it seems that those edits have little effect on the overall setup.

any help would be greatly appreciated.