I use the theme’s colorful blocks on home page so 1st page needs different menu

I use the theme’s colorful blocks in “Section One” on my home page – these duplicate 6 of the Pages in the Menu, with most of them being a top-level menu item, so the same words appear twice, in a barely-stylized horizontal list and immediately below in the colorful blocks. My website looks dumb. I created an additional menu, but if I make that the new Primary Menu, then other pages – which don’t have the colorful blocks, are missing these 6 links. Can I either (a) set different menus for the homepage and other pages?, or (b) get Section One to appear on all pages and posts and displays of tags and categories etc?

The page I need help with: [log in to see the link]