wolfcub71 Hi
To be more precise and avoid confusion/ambiguity in addressing your query, Kindly provide screenshot marked with annotations showing as to how you wish to have the specific section seen although, from UX prospective and avoiding compatibility issues, Would suggest to decrease number of parent menu items which can accomodate with ease in particular area
Or make some menu items dropdowns - You can always configure the mega menu to hold specific dropdowns in columns, change width etc through robust options available through T3 framework