Tmux ssh-agent and vi mode

.tmux.conf

set -g prefix F1
set -g base-index 1
set -g pane-base-index 1
set -g status-bg black
set -g status-fg white
set -g status-left-length 50
set -g status-right-length 150
set -g status-interval 5
set -g status-left '#[fg=cyan,bold]#(hostname)'
set -g status-right '#[default] #[fg=cyan,bold]%Y-%m-%d %H:%M:%S#[default]'
set -g window-status-current-bg red
bind r source-file ~/.tmux.conf
bind k clear-history
bind Left swap-window -t -1
bind Right swap-window -t +1
setenv -g SSH_AUTH_SOCK ~/.ssh/ssh_auth_sock
set -g update-environment -r
set-window-option -g mode-keys vi
bind v copy-mode
bind P paste-buffer
bind s choose-buffer
bind-key -T copy-mode-vi 'v' send -X begin-selection
bind-key -T copy-mode-vi 'c' send -X rectangle-toggle
bind-key -T copy-mode-vi 'y' send -X copy-selection-and-cancel

# tmux 2.3-
#bind-key -t vi-copy 'v' begin-selection
#bind-key -t vi-copy 'c' rectangle-toggle
#bind-key -t vi-copy 'y' copy-selection