diff --git a/format.c b/format.c
index 4a94df8a..fd5aebcc 100644
--- a/format.c
+++ b/format.c
@@ -1856,15 +1856,6 @@ format_cb_keypad_flag(struct format_tree *ft)
 	return (NULL);
 }
 
-/* Callback for loop_last_flag. */
-static void *
-format_cb_loop_last_flag(struct format_tree *ft)
-{
-	if (ft->flags & FORMAT_LAST)
-		return (xstrdup("1"));
-	return (xstrdup("0"));
-}
-
 /* Callback for mouse_all_flag. */
 static void *
 format_cb_mouse_all_flag(struct format_tree *ft)
@@ -3349,9 +3340,6 @@ static const struct format_table_entry format_table[] = {
 	{ "last_window_index", FORMAT_TABLE_STRING,
 	  format_cb_last_window_index
 	},
-	{ "loop_last_flag", FORMAT_TABLE_STRING,
-	  format_cb_loop_last_flag
-	},
 	{ "mouse_all_flag", FORMAT_TABLE_STRING,
 	  format_cb_mouse_all_flag
 	},
@@ -4686,7 +4674,7 @@ format_loop_sessions(struct format_expand_state *es, const char *fmt)
 	struct evbuffer			 *buffer;
 	size_t				  size;
 	struct session			 *s, **l;
-	int				  i, n, last = 0;
+	int				  i, n;
 
 	if (format_choose(es, fmt, &all, &active, 0) != 0) {
 		all = xstrdup(fmt);
@@ -4707,9 +4695,9 @@ format_loop_sessions(struct format_expand_state *es, const char *fmt)
 			use = active;
 		else
 			use = all;
-		if (i == n - 1)
-			last = FORMAT_LAST;
-		nft = format_create(c, item, FORMAT_NONE, ft->flags|last);
+		nft = format_create(c, item, FORMAT_NONE, ft->flags);
+		format_add(nft, "loop_index", "%d", i);
+		format_add(nft, "loop_last_flag", "%d", i == n - 1);
 		format_defaults(nft, ft->c, s, NULL, NULL);
 		format_copy_state(&next, es, 0);
 		next.ft = nft;
@@ -4801,7 +4789,7 @@ format_loop_windows(struct format_expand_state *es, const char *fmt)
 	size_t				  size;
 	struct winlink			 *wl, **l;
 	struct window			 *w;
-	int				  i, n, last = 0;
+	int				  i, n;
 
 	if (ft->s == NULL) {
 		format_log(es, "window loop but no session");
@@ -4826,10 +4814,10 @@ format_loop_windows(struct format_expand_state *es, const char *fmt)
 			use = active;
 		else
 			use = all;
-		if (i == n - 1)
-			last = FORMAT_LAST;
 		nft = format_create(c, item, FORMAT_WINDOW|w->id,
-		    ft->flags|last);
+		    ft->flags);
+		format_add(nft, "loop_index", "%d", i);
+		format_add(nft, "loop_last_flag", "%d", i == n - 1);
 		format_defaults(nft, ft->c, ft->s, wl, NULL);
 
 		/* Add neighbor window data to the format tree. */
@@ -4876,7 +4864,7 @@ format_loop_panes(struct format_expand_state *es, const char *fmt)
 	struct evbuffer			*buffer;
 	size_t				 size;
 	struct window_pane		*wp, **l;
-	int				  i, n, last = 0;
+	int				  i, n;
 
 	if (ft->w == NULL) {
 		format_log(es, "pane loop but no window");
@@ -4900,10 +4888,10 @@ format_loop_panes(struct format_expand_state *es, const char *fmt)
 			use = active;
 		else
 			use = all;
-		if (i == n - 1)
-			last = FORMAT_LAST;
 		nft = format_create(c, item, FORMAT_PANE|wp->id,
-		    ft->flags|last);
+		    ft->flags);
+		format_add(nft, "loop_index", "%d", i);
+		format_add(nft, "loop_last_flag", "%d", i == n - 1);
 		format_defaults(nft, ft->c, ft->s, ft->wl, wp);
 		format_copy_state(&next, es, 0);
 		next.ft = nft;
@@ -4938,7 +4926,7 @@ format_loop_clients(struct format_expand_state *es, const char *fmt)
 	char				 *expanded, *value;
 	struct evbuffer			 *buffer;
 	size_t				  size;
-	int				  i, n, last = 0;
+	int				  i, n;
 
 	buffer = evbuffer_new();
 	if (buffer == NULL)
@@ -4948,9 +4936,9 @@ format_loop_clients(struct format_expand_state *es, const char *fmt)
 	for (i = 0; i < n; i++) {
 		c = l[i];
 		format_log(es, "client loop: %s", c->name);
-		if (i == n - 1)
-			last = FORMAT_LAST;
-		nft = format_create(c, item, 0, ft->flags|last);
+		nft = format_create(c, item, 0, ft->flags);
+		format_add(nft, "loop_index", "%d", i);
+		format_add(nft, "loop_last_flag", "%d", i == n - 1);
 		format_defaults(nft, c, ft->s, ft->wl, ft->wp);
 		format_copy_state(&next, es, 0);
 		next.ft = nft;
diff --git a/key-bindings.c b/key-bindings.c
index e8fff304..5a2c3d96 100644
--- a/key-bindings.c
+++ b/key-bindings.c
@@ -25,11 +25,10 @@
 #include "tmux.h"
 
 #define DEFAULT_SESSION_MENU \
-	" 'Next' 'n' {switch-client -n}" \
-	" 'Previous' 'p' {switch-client -p}" \
+	" #{S/t:#{?#{&&:#{<:#{loop_index},6},#{!:#{session_active}}},'Switch To #[underscore]#{session_name}' '' {switch-client -t=#{session_id}#} ,}}" \
 	" ''" \
 	" 'Renumber' 'N' {move-window -r}" \
-	" 'Rename' 'r' {command-prompt -I \"#S\" {rename-session -- '%%'}}" \
+	" 'Rename' 'r' {command-prompt -I '#S' {rename-session -- '%%'}}" \
 	" 'Detach' 'd' {detach-client}" \
 	" ''" \
 	" 'New Session' 's' {new-session}" \
@@ -486,8 +485,8 @@ key_bindings_init(void)
 		"bind -n WheelUpStatus { previous-window }",
 
 		/* Mouse button 3 down on status left. */
-		"bind -n MouseDown3StatusLeft { display-menu -t= -xM -yW -T '#[align=centre]#{session_name}' " DEFAULT_SESSION_MENU " }",
-		"bind -n M-MouseDown3StatusLeft { display-menu -t= -xM -yW -T '#[align=centre]#{session_name}' " DEFAULT_SESSION_MENU " }",
+		"bind -n MouseDown3StatusLeft { run -C \"display-menu -t= -xM -yW -T '#[align=centre]#{session_name}' " DEFAULT_SESSION_MENU "\" }",
+		"bind -n M-MouseDown3StatusLeft { run -C \"display-menu -t= -xM -yW -T '#[align=centre]#{session_name}' " DEFAULT_SESSION_MENU "\" }",
 
 		/* Mouse button 3 down on status line. */
 		"bind -n MouseDown3Status { display-menu -t= -xW -yW -T '#[align=centre]#{window_index}:#{window_name}' " DEFAULT_WINDOW_MENU "}",
diff --git a/tmux.1 b/tmux.1
index 7d9455e2..84ac0dbe 100644
--- a/tmux.1
+++ b/tmux.1
@@ -6776,6 +6776,7 @@ The following variables are available, where appropriate:
 .It Li "keypad_flag" Ta "" Ta "Pane keypad flag"
 .It Li "last_window_index" Ta "" Ta "Index of last window in session"
 .It Li "line" Ta "" Ta "Line number in the list"
+.It Li "loop_index" Ta "" Ta "Index of item in the W:, P:, S:, or L: loop"
 .It Li "loop_last_flag" Ta "" Ta "1 if last window, pane, session, client in the W:, P:, S:, or L: loop"
 .It Li "mouse_all_flag" Ta "" Ta "Pane mouse all flag"
 .It Li "mouse_any_flag" Ta "" Ta "Pane mouse any flag"