diff --git a/res/values-cs/strings.xml b/res/values-cs/strings.xml
index ea2bdeec8..1f12800b4 100644
--- a/res/values-cs/strings.xml
+++ b/res/values-cs/strings.xml
@@ -122,6 +122,10 @@ Tato aplikace neobsahuje žádné reklamy, nevyužívá připojení k síti a je
   <string name="key_descr_end">End</string>
   <string name="key_descr_clipboard">Správce schránky</string>
   <!-- <string name="key_descr_combining">Combining diacritic</string> -->
+  <!-- <string name="key_descr_zwj">Zero width joiner</string> -->
+  <!-- <string name="key_descr_zwnj">Zero width non-joiner</string> -->
+  <!-- <string name="key_descr_nbsp">Non-breaking space</string> -->
+  <!-- <string name="key_descr_nnbsp">Narrow non-breaking space</string> -->
   <string name="clipboard_history_heading">Nedávno kopírovaný text</string>
   <string name="clipboard_pin_heading">Připnout</string>
   <string name="clipboard_remove_confirm">Odebrat ze schránky?</string>
diff --git a/res/values-de/strings.xml b/res/values-de/strings.xml
index 01e0b085f..0e651e6c2 100644
--- a/res/values-de/strings.xml
+++ b/res/values-de/strings.xml
@@ -122,6 +122,10 @@ Diese App enthält keine Werbung, benötigt keinen Netzwerkzugriff und ist quell
   <string name="key_descr_end">Ende</string>
   <string name="key_descr_clipboard">Clipboard-Manager</string>
   <!-- <string name="key_descr_combining">Combining diacritic</string> -->
+  <!-- <string name="key_descr_zwj">Zero width joiner</string> -->
+  <!-- <string name="key_descr_zwnj">Zero width non-joiner</string> -->
+  <!-- <string name="key_descr_nbsp">Non-breaking space</string> -->
+  <!-- <string name="key_descr_nnbsp">Narrow non-breaking space</string> -->
   <string name="clipboard_history_heading">Zuletzt kopierter Text</string>
   <string name="clipboard_pin_heading">Angeheftet</string>
   <string name="clipboard_remove_confirm">Aus der Zwischenablage entfernen?</string>
diff --git a/res/values-es/strings.xml b/res/values-es/strings.xml
index 965330921..b1e0abd1a 100644
--- a/res/values-es/strings.xml
+++ b/res/values-es/strings.xml
@@ -122,6 +122,10 @@ La misma no contiene ningún anuncio/publicidad, no realiza peticiones de red y
   <string name="key_descr_end">Fin</string>
   <string name="key_descr_clipboard">Arreglar portapapeles</string>
   <!-- <string name="key_descr_combining">Combining diacritic</string> -->
+  <!-- <string name="key_descr_zwj">Zero width joiner</string> -->
+  <!-- <string name="key_descr_zwnj">Zero width non-joiner</string> -->
+  <!-- <string name="key_descr_nbsp">Non-breaking space</string> -->
+  <!-- <string name="key_descr_nnbsp">Narrow non-breaking space</string> -->
   <string name="clipboard_history_heading">Textos recién copiados</string>
   <string name="clipboard_pin_heading">Pegado</string>
   <string name="clipboard_remove_confirm">¿Sacar este portapapeles?</string>
diff --git a/res/values-fa/strings.xml b/res/values-fa/strings.xml
index 3c0837002..3f31c6537 100644
--- a/res/values-fa/strings.xml
+++ b/res/values-fa/strings.xml
@@ -122,6 +122,10 @@ This application contains no ads, doesn't make any network requests and is Open
   <!-- <string name="key_descr_end">End</string> -->
   <!-- <string name="key_descr_clipboard">Clipboard manager</string> -->
   <!-- <string name="key_descr_combining">Combining diacritic</string> -->
+  <!-- <string name="key_descr_zwj">Zero width joiner</string> -->
+  <!-- <string name="key_descr_zwnj">Zero width non-joiner</string> -->
+  <!-- <string name="key_descr_nbsp">Non-breaking space</string> -->
+  <!-- <string name="key_descr_nnbsp">Narrow non-breaking space</string> -->
   <!-- <string name="clipboard_history_heading">Recently copied text</string> -->
   <!-- <string name="clipboard_pin_heading">Pinned</string> -->
   <!-- <string name="clipboard_remove_confirm">Remove this clipboard?</string> -->
diff --git a/res/values-fr/strings.xml b/res/values-fr/strings.xml
index 64b57129a..cf3656cf7 100644
--- a/res/values-fr/strings.xml
+++ b/res/values-fr/strings.xml
@@ -122,6 +122,10 @@ Cette application ne contient pas de publicité, n'accède pas au réseau et est
   <string name="key_descr_end">Fin</string>
   <string name="key_descr_clipboard">Presse-papiers</string>
   <!-- <string name="key_descr_combining">Combining diacritic</string> -->
+  <!-- <string name="key_descr_zwj">Zero width joiner</string> -->
+  <!-- <string name="key_descr_zwnj">Zero width non-joiner</string> -->
+  <!-- <string name="key_descr_nbsp">Non-breaking space</string> -->
+  <!-- <string name="key_descr_nnbsp">Narrow non-breaking space</string> -->
   <string name="clipboard_history_heading">Texte récemment copié</string>
   <string name="clipboard_pin_heading">Épinglé</string>
   <string name="clipboard_remove_confirm">Supprimer ce presse-papiers ?</string>
diff --git a/res/values-it/strings.xml b/res/values-it/strings.xml
index 8e86f94b8..74ddf3bab 100644
--- a/res/values-it/strings.xml
+++ b/res/values-it/strings.xml
@@ -122,6 +122,10 @@ This application contains no ads, doesn't make any network requests and is Open
   <!-- <string name="key_descr_end">End</string> -->
   <!-- <string name="key_descr_clipboard">Clipboard manager</string> -->
   <!-- <string name="key_descr_combining">Combining diacritic</string> -->
+  <!-- <string name="key_descr_zwj">Zero width joiner</string> -->
+  <!-- <string name="key_descr_zwnj">Zero width non-joiner</string> -->
+  <!-- <string name="key_descr_nbsp">Non-breaking space</string> -->
+  <!-- <string name="key_descr_nnbsp">Narrow non-breaking space</string> -->
   <!-- <string name="clipboard_history_heading">Recently copied text</string> -->
   <!-- <string name="clipboard_pin_heading">Pinned</string> -->
   <!-- <string name="clipboard_remove_confirm">Remove this clipboard?</string> -->
diff --git a/res/values-ja/strings.xml b/res/values-ja/strings.xml
index ebe86907b..5325809d7 100644
--- a/res/values-ja/strings.xml
+++ b/res/values-ja/strings.xml
@@ -123,6 +123,10 @@ PCキーボードでの半角入力を再現しています。日本語入力、
   <string name="key_descr_end">End</string>
   <string name="key_descr_clipboard">クリップボード</string>
   <!-- <string name="key_descr_combining">Combining diacritic</string> -->
+  <!-- <string name="key_descr_zwj">Zero width joiner</string> -->
+  <!-- <string name="key_descr_zwnj">Zero width non-joiner</string> -->
+  <!-- <string name="key_descr_nbsp">Non-breaking space</string> -->
+  <!-- <string name="key_descr_nnbsp">Narrow non-breaking space</string> -->
   <string name="clipboard_history_heading">最近コピーしたテキスト</string>
   <string name="clipboard_pin_heading">お気に入り</string>
   <string name="clipboard_remove_confirm">クリップボードから削除しますか?</string>
diff --git a/res/values-ko/strings.xml b/res/values-ko/strings.xml
index 954fab7f8..27b6da80c 100644
--- a/res/values-ko/strings.xml
+++ b/res/values-ko/strings.xml
@@ -122,6 +122,10 @@
   <string name="key_descr_end">종료</string>
   <string name="key_descr_clipboard">클립보드 관리자</string>
   <!-- <string name="key_descr_combining">Combining diacritic</string> -->
+  <!-- <string name="key_descr_zwj">Zero width joiner</string> -->
+  <!-- <string name="key_descr_zwnj">Zero width non-joiner</string> -->
+  <!-- <string name="key_descr_nbsp">Non-breaking space</string> -->
+  <!-- <string name="key_descr_nnbsp">Narrow non-breaking space</string> -->
   <string name="clipboard_history_heading">최근에 복사한 텍스트</string>
   <string name="clipboard_pin_heading">고정</string>
   <string name="clipboard_remove_confirm">이 클립보드를 제거하시겠습니까?</string>
diff --git a/res/values-lv/strings.xml b/res/values-lv/strings.xml
index a8727901e..1f9361b51 100644
--- a/res/values-lv/strings.xml
+++ b/res/values-lv/strings.xml
@@ -124,6 +124,10 @@ Tagad lieliski piemērota izmantošanai ikdienā.
   <string name="key_descr_end">Beigas</string>
   <string name="key_descr_clipboard">Starpliktuves pārvaldnieks</string>
   <!-- <string name="key_descr_combining">Combining diacritic</string> -->
+  <!-- <string name="key_descr_zwj">Zero width joiner</string> -->
+  <!-- <string name="key_descr_zwnj">Zero width non-joiner</string> -->
+  <!-- <string name="key_descr_nbsp">Non-breaking space</string> -->
+  <!-- <string name="key_descr_nnbsp">Narrow non-breaking space</string> -->
   <string name="clipboard_history_heading">Nesen starpliktuvē ievietots teksts</string>
   <string name="clipboard_pin_heading">Piesprausts</string>
   <string name="clipboard_remove_confirm">Noņemt šo starpliktuves vienumu?</string>
diff --git a/res/values-pl/strings.xml b/res/values-pl/strings.xml
index 6a426fc38..4ec933883 100644
--- a/res/values-pl/strings.xml
+++ b/res/values-pl/strings.xml
@@ -122,6 +122,10 @@ Aplikacja nie zawiera reklam, nie żąda dostępu do internetu, a jej kod źród
   <string name="key_descr_end">End</string>
   <string name="key_descr_clipboard">Zarządzanie schowkiem</string>
   <!-- <string name="key_descr_combining">Combining diacritic</string> -->
+  <!-- <string name="key_descr_zwj">Zero width joiner</string> -->
+  <!-- <string name="key_descr_zwnj">Zero width non-joiner</string> -->
+  <!-- <string name="key_descr_nbsp">Non-breaking space</string> -->
+  <!-- <string name="key_descr_nnbsp">Narrow non-breaking space</string> -->
   <string name="clipboard_history_heading">Ostatnio skopiowane elementy</string>
   <string name="clipboard_pin_heading">Przypięte</string>
   <string name="clipboard_remove_confirm">Usunąć ten element ze schowka?</string>
diff --git a/res/values-pt/strings.xml b/res/values-pt/strings.xml
index a369715cd..61ff69a86 100644
--- a/res/values-pt/strings.xml
+++ b/res/values-pt/strings.xml
@@ -122,6 +122,10 @@ Este aplicativo não contém anúncios, não faz nenhuma solicitação de rede e
   <string name="key_descr_end">End</string>
   <string name="key_descr_clipboard">Área de transferência</string>
   <string name="key_descr_combining">Combinação de diacríticos</string>
+  <!-- <string name="key_descr_zwj">Zero width joiner</string> -->
+  <!-- <string name="key_descr_zwnj">Zero width non-joiner</string> -->
+  <!-- <string name="key_descr_nbsp">Non-breaking space</string> -->
+  <!-- <string name="key_descr_nnbsp">Narrow non-breaking space</string> -->
   <string name="clipboard_history_heading">Textos recém copiados</string>
   <string name="clipboard_pin_heading">Fixados</string>
   <string name="clipboard_remove_confirm">Remover esta cópia?</string>
diff --git a/res/values-ro/strings.xml b/res/values-ro/strings.xml
index 3746f886f..a19b1182d 100644
--- a/res/values-ro/strings.xml
+++ b/res/values-ro/strings.xml
@@ -122,6 +122,10 @@ Această aplicație nu conține publicitate, nu folosește rețeaua deloc și e
   <!-- <string name="key_descr_end">End</string> -->
   <!-- <string name="key_descr_clipboard">Clipboard manager</string> -->
   <!-- <string name="key_descr_combining">Combining diacritic</string> -->
+  <!-- <string name="key_descr_zwj">Zero width joiner</string> -->
+  <!-- <string name="key_descr_zwnj">Zero width non-joiner</string> -->
+  <!-- <string name="key_descr_nbsp">Non-breaking space</string> -->
+  <!-- <string name="key_descr_nnbsp">Narrow non-breaking space</string> -->
   <!-- <string name="clipboard_history_heading">Recently copied text</string> -->
   <!-- <string name="clipboard_pin_heading">Pinned</string> -->
   <!-- <string name="clipboard_remove_confirm">Remove this clipboard?</string> -->
diff --git a/res/values-ru/strings.xml b/res/values-ru/strings.xml
index 9a795ad97..110647ad7 100644
--- a/res/values-ru/strings.xml
+++ b/res/values-ru/strings.xml
@@ -122,6 +122,10 @@
   <string name="key_descr_end">End</string>
   <string name="key_descr_clipboard">Менеджер буфера обмена</string>
   <string name="key_descr_combining">Сочетание диакритических знаков</string>
+  <!-- <string name="key_descr_zwj">Zero width joiner</string> -->
+  <!-- <string name="key_descr_zwnj">Zero width non-joiner</string> -->
+  <!-- <string name="key_descr_nbsp">Non-breaking space</string> -->
+  <!-- <string name="key_descr_nnbsp">Narrow non-breaking space</string> -->
   <string name="clipboard_history_heading">Недавно скопированный текст</string>
   <string name="clipboard_pin_heading">Закреплено</string>
   <string name="clipboard_remove_confirm">Удалить этот буфер обмена?</string>
diff --git a/res/values-tr/strings.xml b/res/values-tr/strings.xml
index 6281db467..6c3b3165b 100644
--- a/res/values-tr/strings.xml
+++ b/res/values-tr/strings.xml
@@ -122,6 +122,10 @@ Bu uygulama açık kaynaklıdır. Reklam içermez ve internete bağlanmaz."</str
   <string name="key_descr_end">SON(Sağ yön tuşu)</string>
   <string name="key_descr_clipboard">Pano</string>
   <!-- <string name="key_descr_combining">Combining diacritic</string> -->
+  <!-- <string name="key_descr_zwj">Zero width joiner</string> -->
+  <!-- <string name="key_descr_zwnj">Zero width non-joiner</string> -->
+  <!-- <string name="key_descr_nbsp">Non-breaking space</string> -->
+  <!-- <string name="key_descr_nnbsp">Narrow non-breaking space</string> -->
   <string name="clipboard_history_heading">Son kopyalanan metin</string>
   <string name="clipboard_pin_heading">Sabitlendi</string>
   <string name="clipboard_remove_confirm">Bu sabitlemeyi sil</string>
diff --git a/res/values-uk/strings.xml b/res/values-uk/strings.xml
index 4bed38926..31eae962b 100644
--- a/res/values-uk/strings.xml
+++ b/res/values-uk/strings.xml
@@ -122,6 +122,10 @@
   <string name="key_descr_end">End</string>
   <string name="key_descr_clipboard">Менеджер буфера обміну</string>
   <string name="key_descr_combining">Комбінування діакритики</string>
+  <!-- <string name="key_descr_zwj">Zero width joiner</string> -->
+  <!-- <string name="key_descr_zwnj">Zero width non-joiner</string> -->
+  <!-- <string name="key_descr_nbsp">Non-breaking space</string> -->
+  <!-- <string name="key_descr_nnbsp">Narrow non-breaking space</string> -->
   <string name="clipboard_history_heading">Нещодавно скопійований текст</string>
   <string name="clipboard_pin_heading">Закріплено</string>
   <string name="clipboard_remove_confirm">Видалити цей буфер обміну?</string>
diff --git a/res/values-vi/strings.xml b/res/values-vi/strings.xml
index 2bb8e8a05..2b7ab930f 100644
--- a/res/values-vi/strings.xml
+++ b/res/values-vi/strings.xml
@@ -122,6 +122,10 @@ Bây giờ đã hoàn hảo cho việc sử dụng hàng ngày.
   <!-- <string name="key_descr_end">End</string> -->
   <!-- <string name="key_descr_clipboard">Clipboard manager</string> -->
   <!-- <string name="key_descr_combining">Combining diacritic</string> -->
+  <!-- <string name="key_descr_zwj">Zero width joiner</string> -->
+  <!-- <string name="key_descr_zwnj">Zero width non-joiner</string> -->
+  <!-- <string name="key_descr_nbsp">Non-breaking space</string> -->
+  <!-- <string name="key_descr_nnbsp">Narrow non-breaking space</string> -->
   <!-- <string name="clipboard_history_heading">Recently copied text</string> -->
   <!-- <string name="clipboard_pin_heading">Pinned</string> -->
   <!-- <string name="clipboard_remove_confirm">Remove this clipboard?</string> -->
diff --git a/res/values-zh-rCN/strings.xml b/res/values-zh-rCN/strings.xml
index ae9550c3d..ee84f2dc9 100644
--- a/res/values-zh-rCN/strings.xml
+++ b/res/values-zh-rCN/strings.xml
@@ -122,6 +122,10 @@
   <string name="key_descr_end">End</string>
   <!-- <string name="key_descr_clipboard">Clipboard manager</string> -->
   <!-- <string name="key_descr_combining">Combining diacritic</string> -->
+  <!-- <string name="key_descr_zwj">Zero width joiner</string> -->
+  <!-- <string name="key_descr_zwnj">Zero width non-joiner</string> -->
+  <!-- <string name="key_descr_nbsp">Non-breaking space</string> -->
+  <!-- <string name="key_descr_nnbsp">Narrow non-breaking space</string> -->
   <!-- <string name="clipboard_history_heading">Recently copied text</string> -->
   <!-- <string name="clipboard_pin_heading">Pinned</string> -->
   <!-- <string name="clipboard_remove_confirm">Remove this clipboard?</string> -->
diff --git a/res/values/strings.xml b/res/values/strings.xml
index 9c0818562..3efcfdddb 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -122,6 +122,10 @@ This application contains no ads, doesn't make any network requests and is Open
   <string name="key_descr_end">End</string>
   <string name="key_descr_clipboard">Clipboard manager</string>
   <string name="key_descr_combining">Combining diacritic</string>
+  <string name="key_descr_zwj">Zero width joiner</string>
+  <string name="key_descr_zwnj">Zero width non-joiner</string>
+  <string name="key_descr_nbsp">Non-breaking space</string>
+  <string name="key_descr_nnbsp">Narrow non-breaking space</string>
   <string name="clipboard_history_heading">Recently copied text</string>
   <string name="clipboard_pin_heading">Pinned</string>
   <string name="clipboard_remove_confirm">Remove this clipboard?</string>
diff --git a/srcs/juloo.keyboard2/prefs/ExtraKeysPreference.java b/srcs/juloo.keyboard2/prefs/ExtraKeysPreference.java
index 08260aa5b..92c7d3a36 100644
--- a/srcs/juloo.keyboard2/prefs/ExtraKeysPreference.java
+++ b/srcs/juloo.keyboard2/prefs/ExtraKeysPreference.java
@@ -51,6 +51,10 @@ public class ExtraKeysPreference extends PreferenceCategory
     "†",
     "ª",
     "º",
+    "zwj",
+    "zwnj",
+    "nbsp",
+    "nnbsp",
     "tab",
     "esc",
     "page_up",
@@ -164,6 +168,10 @@ static String key_description(Resources res, String name)
       case "ª": id = R.string.key_descr_ª; break;
       case "º": id = R.string.key_descr_º; break;
       case "switch_clipboard": id = R.string.key_descr_clipboard; break;
+      case "zwj": id = R.string.key_descr_zwj; break;
+      case "zwnj": id = R.string.key_descr_zwnj; break;
+      case "nbsp": id = R.string.key_descr_nbsp; break;
+      case "nnbsp": id = R.string.key_descr_nnbsp; break;
 
       case "combining_dot_above":
       case "combining_double_aigu":