-set $mode_system System (l) lock, (e) logout, (r) reboot, (Shift+s) shutdown
+set $mode_system System (l) lock, (e) logout, (r) reboot, (s) shutdown
mode "$mode_system" {
bindsym l exec --no-startup-id i3exit lock, mode "default"
bindsym e exec --no-startup-id i3exit logout, mode "default"
bindsym r exec --no-startup-id i3exit reboot, mode "default"
mode "$mode_system" {
bindsym l exec --no-startup-id i3exit lock, mode "default"
bindsym e exec --no-startup-id i3exit logout, mode "default"
bindsym r exec --no-startup-id i3exit reboot, mode "default"