Install gnome-panel-control by entering the following commands in the terminal:
sudo apt update sudo apt install gnome-panel-control
Description:
command line utility to invoke GNOME panel run dialog/menu
gnome-panel-control can be used to invoke the GNOME panel run or main menu from the command line. This is originally a helper utility of openbox since gnome-panel is no longer managing its own key bindings.
Homepage: http://www.openbox.org
Version: 3.6.1-7
Section: universe/x11