This package contains a sample script in the doc directory named

appmenu-qt5.sh which activates the global menu for Qt5 applications.

To activate it globally for all users, save it in

/etc/profile.d/ and make it executable. This is not recommended, because

it works currently only with plasma-widget-menubar in KDE SC4, all other

desktops are not affected. It would cause that the menubar of

Qt5 applications is not visible there.

To activate it for a certain user, integrate it in the appropriate autostart

toolchain of your desktop environment or session/window manager.