Theme Boost Union is an enhanced child theme of Boost which is intended, on the one hand, to make Boost simply more configurable and, on the other hand, to provide helpful additional features for the daily Moodle operation of admins, teachers and students.
This is a follow up issue for smart menus and will be considered and spec'd out after the current smart menu enhancements are completed.
Idea: Introduce a min-width setting for each smart menu with options like: