gsettings set org.gnome.desktop.wm.keybindings switch-to-workspace-1 "['<alt>1']"
gsettings set org.gnome.desktop.wm.keybindings switch-to-workspace-2 "['<alt>2']"
gsettings set org.gnome.desktop.wm.keybindings switch-to-workspace-3 "['<alt>3']"
gsettings set org.gnome.desktop.wm.keybindings switch-to-workspace-4 "['<alt>4']"

gsettings set org.gnome.desktop.wm.keybindings move-to-workspace-1 "['<alt><shift>1']"
gsettings set org.gnome.desktop.wm.keybindings move-to-workspace-2 "['<alt><shift>2']"
gsettings set org.gnome.desktop.wm.keybindings move-to-workspace-3 "['<alt><shift>3']"
gsettings set org.gnome.desktop.wm.keybindings move-to-workspace-4 "['<alt><shift>4']"

gsettings set org.gnome.desktop.wm.keybindings switch-windows "['<alt>j']"
gsettings set org.gnome.desktop.wm.keybindings switch-windows-backward "['<alt>k']"

gsettings set org.gnome.desktop.wm.keybindings close "['<alt><shift>c']"