Turn on again old expandable menu

Question

In the latest WP the admin interface is changed and you have a popup submenu. I really liked the old version better with expandable menu. Is it somehow possible to get that back again for all users?

Answer 1

Yep, believe so. Try this (enqueue in admin styles):

Show sub-menus at all times

#adminmenu .wp-submenu,
.folded #adminmenu .wp-submenu {
     display: block !important;
}

Hide Pop-up Navs

.wp-submenu.sub-open {
     display: none !important;
}

That should get you started with it, otherwise you can go to wp-admin.dev.css and edit the navigation there, starting at line c. 1519. Hope that helps..