Disable Responsive Style is not available

Hello, i use the Clean Journal Pro Theme, in the theme instructions i found this point: Go to “Appearance => Customize => Theme Options => Responsive Options” Check option “Check to disable responsive style” Finally, click on “Save & Publish” But i have only the option to disable footer mobile menu. My problem is that i don't want the hamburger menu (the 3 bars), i will see the full navigation also in the mobile version. How can i realize that? Thanks a lot.