Hi,

using Custom CSS. I am not sure if we think both about that same, but read: https://www.joomshaper.com/documentation/helix-framework/customization-tips#how-to-change-the-position-of-the-menu

Examples:

justify-content: center; /* Pack items around the center */
justify-content: start; /* Pack items from the start (left) */
justify-content: end; /* Pack items from the end (right) */

remember about "!important"