bind-key -n M-Down    select-pane -D
bind-key -n M-Up      select-pane -U
bind-key -n M-Left    select-pane -L
bind-key -n M-Right   select-pane -R

bind-key -n M-j       select-pane -D
bind-key -n M-k       select-pane -U
bind-key -n M-l       select-pane -L
bind-key -n M-h       select-pane -R

bind-key -n S-M-Right next-window
bind-key -n S-M-Left  previous-window
bind-key -n S-M-Up    split-window -h -c "#{pane_current_path}"
bind-key -n S-M-Down  split-window -v -c "#{pane_current_path}"

// these do not work
bind-key -n S-M-l     next-window
bind-key -n S-M-h     previous-window
bind-key -n S-M-k     split-window -h -c "#{pane_current_path}"
bind-key -n S-M-j     split-window -v -c "#{pane_current_path}"