[Gambas-user] Unity desktop, menu's doubling.

[Gianluigi]

Despite the help's suggest and, before loading the graphics, I've used
Application.Env["APPMENU_DISPLAY_BOTH"] = "1", I get a menu in the top
desktop panel and another in the window.
Both working but from the keyboard only works the top desktop menu, see
attached.
How can I get only one menu?

Regards
Gianluigi

[System]
Gambas=3.8.4
OperatingSystem=Linux
Kernel=4.4.0-22-generic
Architecture=x86_64
Distribution=Ubuntu 16.04 LTS
Desktop=GNOME
Theme=Cleanlooks
Language=it_IT.UTF-8
Memory=15976M

[Libraries]
Cairo=libcairo.so.2.11400.6
Curl=libcurl.so.4.4.0
DBus=libdbus-1.so.3.14.6
GStreamer=libgstreamer-1.0.so.0.800.0
GTK+2=libgtk-x11-2.0.so.0.2400.30
GTK+3=libgtk-3.so.0.1800.9
OpenGL=libGL.so.1.0.0
OpenGL=libGL.so.1.2.0
Poppler=libpoppler.so.58.0.0
QT4=libQtCore.so.4.8.7
QT5=libQt5Core.so.5.5.1
SDL=libSDL-1.2.so.0.11.4

[Environment]
CLUTTER_IM_MODULE=xim
COMPIZ_BIN_PATH=/usr/bin/
COMPIZ_CONFIG_PROFILE=ubuntu
DBUS_SESSION_BUS_ADDRESS=unix:abstract=/tmp/dbus-x0u2auXarM
DEFAULTS_PATH=/usr/share/gconf/ubuntu.default.path
DESKTOP_SESSION=ubuntu
DISPLAY=:0
GB_GUI=gb.qt4
GDMSESSION=ubuntu
GDM_LANG=it
GIO_LAUNCHED_DESKTOP_FILE=/usr/share/applications/gambas3.desktop
GIO_LAUNCHED_DESKTOP_FILE_PID=6666
GNOME_DESKTOP_SESSION_ID=this-is-deprecated
GNOME_KEYRING_CONTROL=
GNOME_KEYRING_PID=
GPG_AGENT_INFO=/home/<hostname>/.gnupg/S.gpg-agent:0:1
GTK2_MODULES=overlay-scrollbar
GTK_IM_MODULE=ibus
GTK_MODULES=gail:atk-bridge:unity-gtk-module
HOME=/home/<hostname>
IM_CONFIG_PHASE=1
INSTANCE=
JOB=unity-settings-daemon
LANG=it_IT.UTF-8
LANGUAGE=it
LOGNAME=<hostname>
MANDATORY_PATH=/usr/share/gconf/ubuntu.mandatory.path
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin
PWD=/home/<hostname>
QT4_IM_MODULE=xim
QT_ACCESSIBILITY=1
QT_IM_MODULE=ibus
QT_LINUX_ACCESSIBILITY_ALWAYS_ON=1
QT_QPA_PLATFORMTHEME=qt5ct
SESSION=ubuntu
SESSIONTYPE=gnome-session
SHELL=/bin/bash
SHLVL=0
SSH_AUTH_SOCK=/run/user/1000/keyring/ssh
TZ=:/etc/localtime
UPSTART_EVENTS=xsession started
UPSTART_INSTANCE=
UPSTART_JOB=unity7
UPSTART_SESSION=unix:abstract=/com/ubuntu/upstart-session/1000/1032
USER=<hostname>
XAUTHORITY=/home/<hostname>/.Xauthority
XDG_CONFIG_DIRS=/etc/xdg/xdg-ubuntu:/usr/share/upstart/xdg:/etc/xdg
XDG_CURRENT_DESKTOP=Unity
XDG_DATA_DIRS=/usr/share/ubuntu:/usr/share/gnome:/usr/local/share/:/usr/share/:/var/lib/snapd/desktop
XDG_GREETER_DATA_DIR=/var/lib/lightdm-data/<hostname>
XDG_RUNTIME_DIR=/run/user/1000
XDG_SEAT=seat0
XDG_SEAT_PATH=/org/freedesktop/DisplayManager/Seat0
XDG_SESSION_DESKTOP=ubuntu
XDG_SESSION_ID=c1
XDG_SESSION_PATH=/org/freedesktop/DisplayManager/Session0
XDG_SESSION_TYPE=x11
XDG_VTNR=7
XMODIFIERS=@im=ibus