Read the last post which explains with more information.
(edit)
deleted
On Mobile - button MENU - it shows you 3 menu links Home- layouts- and Typography.
The arrow is shown on layout which tells there is sub menus. when you click the link it behaves like an accordion displays right away.
the problem is that behavior doesnt work. when i click the arrow it takes me to the page instead of displaying the submenus. and submenu is only show when on the actual page.
How do I enable that feature?
ok. found this post https://community.getbeans.io/discussion/arrow-in-off-canvas-menu/#post-4641
which has the same problem. apparently the solution is this post https://community.getbeans.io/discussion/offcanvas-menu/#post-558
But it still doesn't work.