diff --git a/.tmux.conf b/.tmux.conf
index a0d7e9f..c50604d 100644
--- a/.tmux.conf
+++ b/.tmux.conf
@@ -32,14 +32,13 @@ bind r source-file ~/.tmux.conf \; display '~/.tmux.conf sourced'
 
 # -- display -------------------------------------------------------------------
 
-set -g base-index 1         # start windows numbering at 1
-setw -g pane-base-index 1   # make pane numbering consistent with windows
+set -g base-index 1           # start windows numbering at 1
+setw -g pane-base-index 1     # make pane numbering consistent with windows
 
-setw -g automatic-rename on # rename window to reflect current program
-set -g renumber-windows on  # renumber windows when a window is closed
+setw -g automatic-rename on   # rename window to reflect current program
+set -g renumber-windows on    # renumber windows when a window is closed
 
-set -g set-titles on                        # set terminal title
-set -g set-titles-string '#h ❐ #S ● #I #W'
+set -g set-titles on          # set terminal title
 
 set -g display-panes-time 800 # slightly longer pane indicators display time
 set -g display-time 1000      # slightly longer status messages display time
@@ -140,6 +139,8 @@ run -b 'tmux bind -T copy-mode-vi y send-keys -X copy-pipe-and-cancel "xclip -in
 run -b 'tmux bind -t vi-copy Escape cancel 2> /dev/null || true'
 run -b 'tmux bind -T copy-mode-vi Escape send -X cancel 2> /dev/null || true'
 run -b 'tmux bind -t vi-copy H start-of-line 2> /dev/null || true'
+run -b 'tmux bind -T copy-mode-vi H send -X start-of-line 2> /dev/null || true'
+run -b 'tmux bind -t vi-copy L end-of-line 2> /dev/null || true'
 run -b 'tmux bind -T copy-mode-vi L send -X end-of-line 2> /dev/null || true'
 
 # copy to Mac OSX clipboard
@@ -206,12 +207,12 @@ run 'cut -c3- ~/.tmux.conf | sh -s _apply_configuration'
 #     window=$(tmux new-window -t "$current_session:" -P "exec maximized... 2> /dev/null & tmux setw -t \"$current_session:\" remain-on-exit on; printf \"Pane has been maximized, press <prefix>+ to restore. %s\" '$current_pane'")
 #     window=${window%.*}
 #
-#     guard=10
-#     while [ x"$(tmux list-panes -t "$window" -F '#{session_name}:#{window_index} #{pane_dead}' 2>/dev/null)" != x"$window 1" ] && [ "$guard" -ne 0 ]; do
-#       sleep 0.01
-#       guard=$((guard - 1))
+#     retry=10
+#     while [ x"$(tmux list-panes -t "$window" -F '#{session_name}:#{window_index} #{pane_dead}' 2>/dev/null)" != x"$window 1" ] && [ "$retry" -ne 0 ]; do
+#       sleep 0.05
+#       retry=$((retry - 1))
 #     done
-#     if [ "$guard" -eq 0 ]; then
+#     if [ "$retry" -eq 0 ]; then
 #       tmux display 'Unable to maximize pane'
 #     fi
 #
@@ -774,6 +775,17 @@ run 'cut -c3- ~/.tmux.conf | sh -s _apply_configuration'
 #         set -g status-left-style "fg=$tmux_conf_theme_status_fg,bg=$tmux_conf_theme_status_bg,$tmux_conf_theme_status_attr"   \;\
 #         set -g status-right-style "fg=$tmux_conf_theme_status_fg,bg=$tmux_conf_theme_status_bg,$tmux_conf_theme_status_attr"
 #
+#   tmux_conf_theme_terminal_title=${tmux_conf_theme_terminal_title:-'#h ❐ #S ● #I #W'}
+#
+#   tmux_conf_theme_terminal_title=$(echo "$tmux_conf_theme_terminal_title" | sed \
+#     -e 's%#{circled_window_index}%#(cut -c3- ~/.tmux.conf | sh -s _circled_digit #I)%g' \
+#     -e 's%#{circled_session_name}%#(cut -c3- ~/.tmux.conf | sh -s _circled_digit #S)%g' \
+#     -e 's%#{username}%#(cut -c3- ~/.tmux.conf | sh -s _username #{pane_tty} false #D)%g' \
+#     -e 's%#{hostname}%#(cut -c3- ~/.tmux.conf | sh -s _hostname #{pane_tty} false #D)%g' \
+#     -e 's%#{username_ssh}%#(cut -c3- ~/.tmux.conf | sh -s _username #{pane_tty} true #D)%g' \
+#     -e 's%#{hostname_ssh}%#(cut -c3- ~/.tmux.conf | sh -s _hostname #{pane_tty} true #D)%g')
+#   tmux set -g set-titles-string "$tmux_conf_theme_terminal_title"
+#
 #   tmux_conf_theme_window_status_fg=${tmux_conf_theme_window_status_fg:-'#8a8a8a'} # white
 #   tmux_conf_theme_window_status_bg=${tmux_conf_theme_window_status_bg:-'#080808'} # dark gray
 #   tmux_conf_theme_window_status_attr=${tmux_conf_theme_window_status_attr:-'none'}
@@ -789,8 +801,20 @@ run 'cut -c3- ~/.tmux.conf | sh -s _apply_configuration'
 #     tmux_conf_theme_window_status_current_format="#[fg=$tmux_conf_theme_window_status_bg,bg=$tmux_conf_theme_window_status_current_bg]$tmux_conf_theme_left_separator_main#[fg=default,bg=default,default] $tmux_conf_theme_window_status_current_format #[fg=$tmux_conf_theme_window_status_current_bg,bg=$tmux_conf_theme_status_bg,none]$tmux_conf_theme_left_separator_main"
 #   fi
 #
-#   tmux_conf_theme_window_status_format=$(echo "$tmux_conf_theme_window_status_format" | sed 's%#{circled_window_index}%#(cut -c3- ~/.tmux.conf | sh -s _circled_digit #I)%g')
-#   tmux_conf_theme_window_status_current_format=$(echo "$tmux_conf_theme_window_status_current_format" | sed 's%#{circled_window_index}%#(cut -c3- ~/.tmux.conf | sh -s _circled_digit #I)%g')
+#   tmux_conf_theme_window_status_format=$(echo "$tmux_conf_theme_window_status_format" | sed \
+#     -e 's%#{circled_window_index}%#(cut -c3- ~/.tmux.conf | sh -s _circled_digit #I)%g' \
+#     -e 's%#{circled_session_name}%#(cut -c3- ~/.tmux.conf | sh -s _circled_digit #S)%g' \
+#     -e 's%#{username}%#(cut -c3- ~/.tmux.conf | sh -s _username #{pane_tty} false #D)%g' \
+#     -e 's%#{hostname}%#(cut -c3- ~/.tmux.conf | sh -s _hostname #{pane_tty} false #D)%g' \
+#     -e 's%#{username_ssh}%#(cut -c3- ~/.tmux.conf | sh -s _username #{pane_tty} true #D)%g' \
+#     -e 's%#{hostname_ssh}%#(cut -c3- ~/.tmux.conf | sh -s _hostname #{pane_tty} true #D)%g')
+#   tmux_conf_theme_window_status_current_format=$(echo "$tmux_conf_theme_window_status_current_format" | sed \
+#     -e 's%#{circled_window_index}%#(cut -c3- ~/.tmux.conf | sh -s _circled_digit #I)%g' \
+#     -e 's%#{circled_session_name}%#(cut -c3- ~/.tmux.conf | sh -s _circled_digit #S)%g' \
+#     -e 's%#{username}%#(cut -c3- ~/.tmux.conf | sh -s _username #{pane_tty} false #D)%g' \
+#     -e 's%#{hostname}%#(cut -c3- ~/.tmux.conf | sh -s _hostname #{pane_tty} false #D)%g' \
+#     -e 's%#{username_ssh}%#(cut -c3- ~/.tmux.conf | sh -s _username #{pane_tty} true #D)%g' \
+#     -e 's%#{hostname_ssh}%#(cut -c3- ~/.tmux.conf | sh -s _hostname #{pane_tty} true #D)%g')
 #
 #   tmux  setw -g window-status-style "fg=$tmux_conf_theme_window_status_fg,bg=$tmux_conf_theme_window_status_bg,$tmux_conf_theme_window_status_attr" \;\
 #         setw -g window-status-format "$tmux_conf_theme_window_status_format" \;\
@@ -829,6 +853,11 @@ run 'cut -c3- ~/.tmux.conf | sh -s _apply_configuration'
 #   tmux_conf_theme_root_bg=${tmux_conf_theme_root_bg:-'none'}
 #   tmux_conf_theme_root_attr=${tmux_conf_theme_root_attr:-'bold,blink'}
 #
+#   tmux_conf_theme_synchronized=${tmux_conf_theme_synchronized:-'🔒'}  # U+1F512
+#   tmux_conf_theme_synchronized_fg=${tmux_conf_theme_synchronized_fg:-'none'}
+#   tmux_conf_theme_synchronized_bg=${tmux_conf_theme_synchronized_bg:-'none'}
+#   tmux_conf_theme_synchronized_attr=${tmux_conf_theme_synchronized_attr:-'none'}
+#
 #   # -- status left style
 #
 #   tmux_conf_theme_status_left=${tmux_conf_theme_status_left-' ❐ #S '}
@@ -845,6 +874,9 @@ run 'cut -c3- ~/.tmux.conf | sh -s _apply_configuration'
 #   tmux_conf_theme_status_left=$(echo "$tmux_conf_theme_status_left" | sed \
 #     -e "s%#{root}%#[fg=$tmux_conf_theme_root_fg]#[bg=$tmux_conf_theme_root_bg]#[$tmux_conf_theme_root_attr]#(cut -c3- ~/.tmux.conf | sh -s _root #{pane_tty} #D)#[inherit]%g")
 #
+#   tmux_conf_theme_status_left=$(echo "$tmux_conf_theme_status_left" | sed \
+#     -e "s%#{synchronized}%#[fg=$tmux_conf_theme_synchronized_fg]#[bg=$tmux_conf_theme_synchronized_bg]#[$tmux_conf_theme_synchronized_attr]#{?pane_synchronized,$tmux_conf_theme_synchronized,}%g")
+#
 #   if [ -n "$tmux_conf_theme_status_left" ]; then
 #     status_left=$(awk \
 #                       -v fg_="$tmux_conf_theme_status_left_fg" \
@@ -929,6 +961,9 @@ run 'cut -c3- ~/.tmux.conf | sh -s _apply_configuration'
 #   tmux_conf_theme_status_right=$(echo "$tmux_conf_theme_status_right" | sed \
 #     -e "s%#{root}%#[fg=$tmux_conf_theme_root_fg]#[bg=$tmux_conf_theme_root_bg]#[$tmux_conf_theme_root_attr]#(cut -c3- ~/.tmux.conf | sh -s _root #{pane_tty} #D)#[inherit]%g")
 #
+#   tmux_conf_theme_status_right=$(echo "$tmux_conf_theme_status_right" | sed \
+#     -e "s%#{synchronized}%#[fg=$tmux_conf_theme_synchronized_fg]#[bg=$tmux_conf_theme_synchronized_bg]#[$tmux_conf_theme_synchronized_attr]#{?pane_synchronized,$tmux_conf_theme_synchronized,}%g")
+#
 #   if [ -n "$tmux_conf_theme_status_right" ]; then
 #     status_right=$(awk \
 #                       -v fg_="$tmux_conf_theme_status_right_fg" \
diff --git a/.tmux.conf.local b/.tmux.conf.local
index 5e22663..c5227e5 100644
--- a/.tmux.conf.local
+++ b/.tmux.conf.local
@@ -90,9 +90,24 @@ tmux_conf_theme_status_fg='#8a8a8a'                     # light gray
 tmux_conf_theme_status_bg='#080808'                     # dark gray
 tmux_conf_theme_status_attr='none'
 
+# terminal title
+#   - built-in variables are:
+#     - #{circled_window_index}
+#     - #{circled_session_name}
+#     - #{hostname}
+#     - #{hostname_ssh}
+#     - #{username}
+#     - #{username_ssh}
+tmux_conf_theme_terminal_title='#h ❐ #S ● #I #W'
+
 # window status style
 #   - built-in variables are:
 #     - #{circled_window_index}
+#     - #{circled_session_name}
+#     - #{hostname}
+#     - #{hostname_ssh}
+#     - #{username}
+#     - #{username_ssh}
 tmux_conf_theme_window_status_fg='#8a8a8a'              # light gray
 tmux_conf_theme_window_status_bg='#080808'              # dark gray
 tmux_conf_theme_window_status_attr='none'
@@ -103,6 +118,11 @@ tmux_conf_theme_window_status_format='#I #W'
 # window current status style
 #   - built-in variables are:
 #     - #{circled_window_index}
+#     - #{circled_session_name}
+#     - #{hostname}
+#     - #{hostname_ssh}
+#     - #{username}
+#     - #{username_ssh}
 tmux_conf_theme_window_status_current_fg='#000000'      # black
 tmux_conf_theme_window_status_current_bg='#00afff'      # light blue
 tmux_conf_theme_window_status_current_attr='bold'
@@ -151,6 +171,7 @@ tmux_conf_theme_right_separator_sub='|'
 #     - #{pairing}
 #     - #{prefix}
 #     - #{root}
+#     - #{synchronized}
 #     - #{uptime_d}
 #     - #{uptime_h}
 #     - #{uptime_m}
@@ -158,7 +179,7 @@ tmux_conf_theme_right_separator_sub='|'
 #     - #{username}
 #     - #{username_ssh}
 tmux_conf_theme_status_left=' ❐ #S | ↑#{?uptime_d, #{uptime_d}d,}#{?uptime_h, #{uptime_h}h,}#{?uptime_m, #{uptime_m}m,} '
-tmux_conf_theme_status_right='#{prefix}#{pairing} #{?battery_status, #{battery_status},}#{?battery_bar, #{battery_bar},}#{?battery_percentage, #{battery_percentage},} , %R , %d %b | #{username}#{root} | #{hostname} '
+tmux_conf_theme_status_right='#{prefix}#{pairing}#{synchronized} #{?battery_status, #{battery_status},}#{?battery_bar, #{battery_bar},}#{?battery_percentage, #{battery_percentage},} , %R , %d %b | #{username}#{root} | #{hostname} '
 
 # status left style
 tmux_conf_theme_status_left_fg='#000000,#e4e4e4,#e4e4e4'  # black, white , white
@@ -188,6 +209,12 @@ tmux_conf_theme_root_fg='none'
 tmux_conf_theme_root_bg='none'
 tmux_conf_theme_root_attr='bold,blink'
 
+# synchronized indicator
+tmux_conf_theme_synchronized='🔒'     # U+1F512
+tmux_conf_theme_synchronized_fg='none'
+tmux_conf_theme_synchronized_bg='none'
+tmux_conf_theme_synchronized_attr='none'
+
 # battery bar symbols
 tmux_conf_battery_bar_symbol_full='◼'
 tmux_conf_battery_bar_symbol_empty='◻'
diff --git a/README.md b/README.md
index fc6d7f8..48fab49 100644
--- a/README.md
+++ b/README.md
@@ -254,6 +254,7 @@ This configuration supports the following builtin variables:
  - `#{pairing}`: is session attached to more than one client?
  - `#{prefix}`: is prefix being depressed?
  - `#{root}`: is current user root?
+ - `#{synchronized}`: are the panes synchronized?
  - `#{uptime_d}`: uptime days
  - `#{uptime_h}`: uptime hours
  - `#{uptime_m}`: uptime minutes