Mobile Menu Without Header

First, thank you for the wonderful plugin it has nearly fixed every issue I was having. Before installing the plugin I loved my header and it works perfectly on desktop. The issue is that on mobile it looked fine but when I clicked my original button to open up the different menu options (about us, products, etc. pages) it popped it up in a terrible unusable spot. I turned to this plugin to fix that but I just want to switch what the menu looks like but not the header itself. So in other words I would still like my header to look like the original theme but just essentially change what it looks like when you open to see the different menus. Thank you for your time and if you need any further explanation let me know!

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