Added keybind for @ (next to !) to join-pane

tmux/.tmux.conf

@@ -24,6 +24,9 @@ bind j select-pane -D
 bind k select-pane -U
 bind l select-pane -R
 
+#join window
+bind-key @ command-prompt -p "create pane from:" "join-pane -s ':%%'"
+
 # change base from 0 to 1 for reachability
 set -g base-index 1