diff --git a/app/action.c b/app/action.c
index bf59f29..42cc64e 100644
--- a/app/action.c
+++ b/app/action.c
@@ -104,6 +104,7 @@ void (*action_opt_table[])(void) = {
 #ifdef ENABLE_FEAT_F4HWN
 	[ACTION_OPT_MAIN] = &ACTION_Main,
 	[ACTION_OPT_PTT] = &ACTION_Ptt,
+	[ACTION_OPT_WN] = &ACTION_Wn,
 #else
 	[ACTION_OPT_MAIN] = &FUNCTION_NOP,
 #endif
@@ -493,5 +494,11 @@ void ACTION_Ptt(void)
 {
 	gSetting_set_ptt = (gSetting_set_ptt == 0) ? 1: 0;
 	
+}
+
+void ACTION_Wn(void)
+{
+	gTxVfo->CHANNEL_BANDWIDTH = (gTxVfo->CHANNEL_BANDWIDTH == 0) ? 1: 0;
+	
 }
 #endif
\ No newline at end of file
diff --git a/app/action.h b/app/action.h
index b837b0c..a82bc3e 100644
--- a/app/action.h
+++ b/app/action.h
@@ -38,6 +38,7 @@ void ACTION_SwitchDemodul(void);
 #ifdef ENABLE_FEAT_F4HWN
 	void ACTION_Main(void);
 	void ACTION_Ptt(void);
+	void ACTION_Wn(void);
 #endif
 
 void ACTION_Handle(KEY_Code_t Key, bool bKeyPressed, bool bKeyHeld);
diff --git a/settings.h b/settings.h
index 2b587ca..2334546 100644
--- a/settings.h
+++ b/settings.h
@@ -93,6 +93,7 @@ enum ACTION_OPT_t {
 #ifdef ENABLE_FEAT_F4HWN
 	ACTION_OPT_MAIN,
 	ACTION_OPT_PTT,
+	ACTION_OPT_WN,
 #endif
 	ACTION_OPT_LEN
 };
diff --git a/ui/menu.c b/ui/menu.c
index cbcb8b1..8927dbd 100644
--- a/ui/menu.c
+++ b/ui/menu.c
@@ -397,8 +397,9 @@ const t_sidefunction gSubMenu_SIDEFUNCTIONS[] =
 	{"BLMIN\nTMP OFF",  ACTION_OPT_BLMIN_TMP_OFF}, 		//BackLight Minimum Temporay OFF
 #endif
 #ifdef ENABLE_FEAT_F4HWN
-	{"SWITCH\nMAIN ONLY", ACTION_OPT_MAIN}, 
-	{"SWITCH\nPTT",  	  ACTION_OPT_PTT},
+	{"SWITCH\nMAIN ONLY",   ACTION_OPT_MAIN},
+	{"SWITCH\nPTT",  	    ACTION_OPT_PTT},
+	{"SWITCH\nWIDE\nARROW", ACTION_OPT_WN},
 #endif
 };