Off-Canvas and Primary Menu

Hi all,

I want to create a Onepage with two different menus. The landing page should have a Off-Canvas menu like the sample site (Landing) in the site library and for the GDPR page I want to use a different header with a standard/classic menu. I've checked "Disable Elements" but this only includes the primary menu itself and no difference between Off-cancas and Classic menu.
Any idea how this is possible?
Sorry for my english, I you understand my intentions.

Best regards,
Tim