bind Left resize-pane -L 5
bind Down resize-pane -D 5
bind Up resize-pane -U 5
bind Right resize-pane -R 6

bind-key -r -T prefix M-Up             resize-pane -U 5
bind-key -r -T prefix M-Down           resize-pane -D 5
bind-key -r -T prefix M-Left           resize-pane -L 5
bind-key -r -T prefix M-Right          resize-pane -R 5
bind-key -r -T prefix C-Up             resize-pane -U
bind-key -r -T prefix C-Down           resize-pane -D
bind-key -r -T prefix C-Left           resize-pane -L
bind-key -r -T prefix C-Right          resize-pane -R

bind-key -n C-Up resize-pane -U 5
bind-key -n C-Down resize-pane -D 5
bind-key -n C-Left resize-pane -L 5
bind-key -n C-Right resize-pane -R 5

bind-key -n C-Up if-shell -F "#{pane_in_mode}" "resize-pane -U 5" "send-keys C-Up"
bind-key -n C-Down if-shell -F "#{pane_in_mode}" "resize-pane -D 5" "send-keys C-Down"
bind-key -n C-Left if-shell -F "#{pane_in_mode}" "resize-pane -L 5" "send-keys C-Left"
bind-key -n C-Right if-shell -F "#{pane_in_mode}" "resize-pane -R 5" "send-keys C-Right"