+### join the last active pane to the currently active window
+bind-key j join-pane -s !
+
+### join the marked pane to the currently active window
+### ('bind-key m select-pane -m' is default to mark the current pane)
+bind-key J join-pane
+
+### Move current window to session named "bg" (and create session if it does not exist)
+bind-key B if-shell "! tmux has-session -t bg" "new-session -d -s bg" \; move-window -t bg
+
+### Reload Config
+if-shell "! (env | grep -q TMUX=/tmp/tmate)" \
+ "bind-key R source-file ~/.tmux.conf \\; source-file -q ~/.tmux.conf.local \\; display-message '~/.tmux.conf[.local] reloaded'"
+
+###rebind keys