it is very simple what the the types of menus? pages product or collection ?
create main menu and add menus in it
If helpful then please Like and Accept Solution. Free Website Review and advice for sale from Hire us Shopify Conversion Experts | Shopify Private App | Custom Theme Development | Custom Modifications In To Shopify Theme | Shopify SEO | Digital Marketing | Site Speed Optimization | Performance Site Audit For Quick Chat Whats app | Email: firstname.lastname@example.org | Skype : oscprofessionals-87