$ gsettings set org.gnome.mutter overlay-key "'Super_L'" $ gsettings set org.pantheon.desktop.gala.behavior overlay-action "'wingpanel --toggle-indicator=app-launcher'"
$ gsettings set org.gnome.mutter overlay-key "'Super_L'" $ gsettings set org.pantheon.desktop.gala.behavior overlay-action "'wingpanel --toggle-indicator=app-launcher'"