diff --git a/graphwidget.cpp b/graphwidget.cpp
index bf24a40..e8ef5e9 100644
--- a/graphwidget.cpp
+++ b/graphwidget.cpp
@@ -63,7 +63,7 @@ void GraphWidget::readContentFromXmlFile(const QString &fileName)
 
     if (!doc.setContent(&file))
     {
-        m_parent->statusBarMsg(tr("Couldn't parse XML file"));
+        m_parent->statusBarMsg(tr("Couldn't parse XML file."));
         file.close();
         return;
     }
@@ -217,12 +217,12 @@ void GraphWidget::keyPressEvent(QKeyEvent *event)
         if (m_edgeAdding)
         {
             m_edgeAdding = false;
-             m_parent->statusBarMsg(tr("Edge adding cancelled"));
+             m_parent->statusBarMsg(tr("Edge adding cancelled."));
         }
         else if (m_edgeDeleting)
         {
             m_edgeDeleting = false;
-            m_parent->statusBarMsg(tr("Edge deleting cancelled"));
+            m_parent->statusBarMsg(tr("Edge deleting cancelled."));
         }
         else if(m_showingNodeNumbers)
         {
diff --git a/mainwindow.cpp b/mainwindow.cpp
index de831b6..ac0aa65 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -23,13 +23,17 @@ MainWindow::MainWindow(QWidget *parent) :
             this, SLOT(saveFileAs()));
     connect(m_ui->actionClose, SIGNAL(activated()),
             this, SLOT(closeFile()));
-
     connect(m_ui->actionExport, SIGNAL(activated()),
             this, SLOT(exportScene()));
+
     connect(m_ui->actionQuit, SIGNAL(activated()),
             QApplication::instance(), SLOT(quit()));
+
     connect(m_ui->actionAbout_QtMindMap, SIGNAL(activated()),
             this, SLOT(about()));
+    connect(m_ui->actionKeys, SIGNAL(activated()),
+            this, SLOT(keys()));
+
 
     setCentralWidget(m_graphicsView);
     m_graphicsView->hide();
@@ -89,7 +93,7 @@ void MainWindow::openFile(const QString &fileName)
         QFileDialog dialog(this,
                            tr("Open MindMap"),
                            QDir::homePath(),
-                           tr("QtMindMap (*.qmm)"));
+                           QString("QtMindMap (*.qmm)"));
         dialog.setAcceptMode(QFileDialog::AcceptOpen);
         dialog.setDefaultSuffix("qmm");
 
@@ -127,7 +131,7 @@ bool MainWindow::saveFileAs()
     QFileDialog dialog(this,
                        tr("Save MindMap as"),
                        QDir::homePath(),
-                       tr("QtMindMap (*.qmm)"));
+                       QString("QtMindMap (*.qmm)"));
     dialog.setAcceptMode(QFileDialog::AcceptSave);
     dialog.setDefaultSuffix("qmm");
 
@@ -205,15 +209,81 @@ void MainWindow::exportScene()
      }
 }
 
+void MainWindow::keys()
+{
+    QMessageBox msgBox(this);
+    msgBox.setWindowTitle(tr("Keys of QtMindMap"));
+    msgBox.setText(tr("Usage of keys & mouse buttons"));
+    msgBox.setInformativeText(
+
+                QString("<table><tr><td><b>").
+
+                append(tr("Keys")).
+                append("</b></td><td></td></tr><tr><td>+,-</td><td>").
+                append(tr("zoom in/out of the view")).
+                append("</td></tr></tr><tr><td>").
+                append(tr("cursors")).
+                append("</td><td>").
+                append(tr("move view scrollbars")).
+                append("</td></tr></tr><tr><td>").
+                append(tr("ctrl + cursors")).
+                append("</td><td>").
+                append(tr("move active node")).
+                append("</td></tr></tr><tr><td>Delete</td><td>").
+                append(tr("remove active node")).
+                append("</td></tr></tr><tr><td>Insert</td><td>").
+                append(tr("add new node to active node")).
+                append("</td></tr></tr><tr><td>f</td><td>").
+                append(tr("enter/leave hint mode (vimperator style select)")).
+                append("</td></tr></tr><tr><td>").
+                append(tr("numbers, backspace, enter")).
+                append("</td><td>").
+                append(tr("select numbers in hint mode")).
+                append("</td></tr></tr><tr><td>F2</td><td>").
+                append(tr("edit active node")).
+                append("</td></tr></tr><tr><td>Esc</td><td>").
+                append(tr("leaving node editing/adding/deleting mode")).
+                append("</td></tr></tr><tr><td>").
+                append(tr("editing mode: ctrl+cursors")).
+                append("</td><td>").
+                append(tr("jump to beginning of next/prev word")).
+                append("</td></tr></tr><tr><td>a</td><td>").
+                append(tr("add new edge to active node (select the destination)")).
+                append("</td></tr></tr><tr><td>d</td><td>").
+                append(tr("delete edge of active node (select other end)")).
+                append("</td></tr><tr><td><b>").
+                append(tr("Mouse")).
+                append("</b></td><td></td></tr><tr><td>").
+                append(tr("scroll")).
+                append("</td><td>").
+                append(tr("zoom in/out of the view")).
+                append("</td></tr><tr><td>").
+                append(tr("click")).
+                append("</td><td>").
+                append(tr("select node")).
+                append("</td></tr><tr><td>").
+                append(tr("double clikk")).
+                append("</td><td>").
+                append(tr("set node editable")).
+                append("</td></tr><tr><td>").
+                append(tr("drag")).
+                append("</td><td>").
+                append(tr("move node")).
+                append("</td></tr></table>"));
+
+    msgBox.exec();
+}
+
 void MainWindow::about()
 {
     QMessageBox msgBox(this);
     msgBox.setWindowTitle(tr("About QtMindMap"));
     msgBox.setText(tr("MindMap software written in Qt."));
-    msgBox.setInformativeText(tr("Homepage: ").
-                              append("https://gitorious.org/qtmindmap\n\n").
-                              append(tr("Report bugs to: ")).
-                              append("denes.matetelki@gmail.com"));
+    msgBox.setTextFormat(Qt::RichText);
+    msgBox.setInformativeText(tr("Homepage:").
+                              append(" <a href=\"https://gitorious.org/qtmindmap\">https://gitorious.org/qtmindmap</a><br><br>").
+                              append(tr("Report bugs to:")).
+                              append(" <a href=\"mailto:denes.matetelki@gmail.com\">denes.matetelki@gmail.com</a>"));
     QPixmap pixMap(":/qtmindmap.svg");
     msgBox.setIconPixmap(pixMap.scaled(50,50));
     msgBox.exec();
diff --git a/mainwindow.h b/mainwindow.h
index 650f57a..d453aea 100644
--- a/mainwindow.h
+++ b/mainwindow.h
@@ -29,8 +29,9 @@ public slots:
     void saveFile();
     bool saveFileAs();
     bool closeFile();
-
     void exportScene();
+
+    void keys();
     void about();
 
 private:
diff --git a/mainwindow.ui b/mainwindow.ui
index 464deae..710c049 100644
--- a/mainwindow.ui
+++ b/mainwindow.ui
@@ -45,6 +45,7 @@
     <property name="title">
      <string>&amp;Help</string>
     </property>
+    <addaction name="actionKeys"/>
     <addaction name="actionAbout_QtMindMap"/>
    </widget>
    <addaction name="menuFile"/>
@@ -138,6 +139,11 @@
     <string>Ctrl+A</string>
    </property>
   </action>
+  <action name="actionKeys">
+   <property name="text">
+    <string>&amp;Keys</string>
+   </property>
+  </action>
  </widget>
  <layoutdefault spacing="6" margin="11"/>
  <resources>
diff --git a/qtmindmap_hu.ts b/qtmindmap_hu.ts
index 8c0c3d9..7450291 100644
--- a/qtmindmap_hu.ts
+++ b/qtmindmap_hu.ts
@@ -2,102 +2,146 @@
 <!DOCTYPE TS>
 <TS version="2.0" language="hu_HU">
 <defaultcodec>UTF-8</defaultcodec>
-<context>
-    <name>AboutDialog</name>
-    <message>
-        <location filename="aboutdialog.ui" line="23"/>
-        <source>About QtMindMap</source>
-        <translation type="unfinished">A QtMindMap-rol</translation>
-    </message>
-    <message>
-        <location filename="aboutdialog.ui" line="54"/>
-        <source>QtMindMap 0.1</source>
-        <translation type="unfinished">QtMindMap 0.1</translation>
-    </message>
-    <message>
-        <location filename="aboutdialog.ui" line="67"/>
-        <source>Mindmap software in QT</source>
-        <translation type="unfinished">Agyterkep szoftver Qt-ben irva</translation>
-    </message>
-    <message>
-        <location filename="aboutdialog.ui" line="80"/>
-        <source>&lt;!DOCTYPE HTML PUBLIC &quot;-//W3C//DTD HTML 4.0//EN&quot; &quot;http://www.w3.org/TR/REC-html40/strict.dtd&quot;&gt;
-&lt;html&gt;&lt;head&gt;&lt;meta name=&quot;qrichtext&quot; content=&quot;1&quot; /&gt;&lt;style type=&quot;text/css&quot;&gt;
-p, li { white-space: pre-wrap; }
-&lt;/style&gt;&lt;/head&gt;&lt;body style=&quot; font-family:&apos;Sans Serif&apos;; font-size:9pt; font-weight:400; font-style:normal;&quot;&gt;
-&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;Denes Matetelki &lt;a href=&quot;mailto:denes.matetelki@gmail.com&quot;&gt;&lt;span style=&quot; text-decoration: underline; color:#508ed8;&quot;&gt;denes.matetelki@gmail.com&lt;/span&gt;&lt;/a&gt;&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</source>
-        <translation type="unfinished"></translation>
-    </message>
-</context>
 <context>
     <name>ArgumentParser</name>
     <message>
-        <location filename="argumentparser.cpp" line="24"/>
+        <location filename="argumentparser.cpp" line="20"/>
         <source>Usage: </source>
-        <translation type="unfinished">Hasznalat: </translation>
+        <translation>Használat: </translation>
     </message>
     <message>
-        <location filename="argumentparser.cpp" line="25"/>
+        <location filename="argumentparser.cpp" line="22"/>
         <source>Mindmap program in QT</source>
-        <translation type="unfinished">Agyterkep program QT-ben irva</translation>
+        <translation>Agytérkép program QT-ben írva</translation>
     </message>
     <message>
-        <location filename="argumentparser.cpp" line="27"/>
+        <location filename="argumentparser.cpp" line="24"/>
         <source>Options:</source>
-        <translation type="unfinished">Opciok:</translation>
+        <translation>Opciók:</translation>
     </message>
     <message>
-        <location filename="argumentparser.cpp" line="28"/>
+        <location filename="argumentparser.cpp" line="25"/>
         <source>Prints this help.</source>
-        <translation type="unfinished">Kiirja ezt a szoveget.</translation>
+        <translation>Kiírja ezt a szöveget.</translation>
     </message>
     <message>
-        <location filename="argumentparser.cpp" line="29"/>
+        <location filename="argumentparser.cpp" line="28"/>
         <source>Starts application in system tray.</source>
-        <translation type="unfinished">A programot blablabla-ban inditja.</translation>
+        <translation>A programot a tálcán is elinditja.</translation>
     </message>
     <message>
-        <location filename="argumentparser.cpp" line="30"/>
+        <location filename="argumentparser.cpp" line="31"/>
         <source>Hide main window, just show systray icon.</source>
-        <translation type="unfinished">Nem mutatja a foablakot, csak a balbalba-t.</translation>
+        <translation>Nem mutatja a főablakot, csak a tálcán indítja el.</translation>
     </message>
     <message>
-        <location filename="argumentparser.cpp" line="32"/>
+        <location filename="argumentparser.cpp" line="33"/>
         <source>Report bugs to: </source>
-        <translation type="unfinished">Ide jelentsd a bugokat: </translation>
+        <translation>Ide jelentsd a hibákat: </translation>
     </message>
     <message>
-        <location filename="argumentparser.cpp" line="65"/>
+        <location filename="argumentparser.cpp" line="70"/>
         <source>Unkown options: </source>
-        <translation type="unfinished">Ismeretlen opciok:</translation>
+        <translation>Ismeretlen opciók:</translation>
     </message>
     <message>
-        <location filename="argumentparser.cpp" line="84"/>
         <location filename="argumentparser.cpp" line="90"/>
-        <location filename="argumentparser.cpp" line="96"/>
-        <location filename="argumentparser.cpp" line="102"/>
+        <location filename="argumentparser.cpp" line="98"/>
+        <location filename="argumentparser.cpp" line="106"/>
+        <location filename="argumentparser.cpp" line="114"/>
         <source>File: </source>
-        <translation type="unfinished">Fajl: </translation>
+        <translation>Fájl: </translation>
     </message>
     <message>
-        <location filename="argumentparser.cpp" line="84"/>
+        <location filename="argumentparser.cpp" line="92"/>
         <source> does not exists.</source>
-        <translation type="unfinished"> nem letezik.</translation>
+        <translation> nem létezik.</translation>
     </message>
     <message>
-        <location filename="argumentparser.cpp" line="90"/>
+        <location filename="argumentparser.cpp" line="100"/>
         <source> is not a file.</source>
-        <translation type="unfinished"> nem egy fajl.</translation>
+        <translation> nem egy fájl.</translation>
     </message>
     <message>
-        <location filename="argumentparser.cpp" line="96"/>
+        <location filename="argumentparser.cpp" line="108"/>
         <source> is not readable.</source>
-        <translation type="unfinished"> nem olvashato.</translation>
+        <translation> nem olvasható.</translation>
     </message>
     <message>
-        <location filename="argumentparser.cpp" line="102"/>
+        <location filename="argumentparser.cpp" line="116"/>
         <source> is not writeable.</source>
-        <translation type="unfinished"> nem irhato.</translation>
+        <translation> nem írható.</translation>
+    </message>
+</context>
+<context>
+    <name>GraphWidget</name>
+    <message>
+        <location filename="graphwidget.cpp" line="60"/>
+        <source>Couldn&apos;t read file.</source>
+        <translation>Nem lehet olvasni a fájlt.</translation>
+    </message>
+    <message>
+        <location filename="graphwidget.cpp" line="66"/>
+        <source>Couldn&apos;t parse XML file.</source>
+        <oldsource>Couldn&apos;t parse XML file</oldsource>
+        <translation>Nem lehetett elemezni az XML dokumentumot.</translation>
+    </message>
+    <message>
+        <location filename="graphwidget.cpp" line="146"/>
+        <source>Couldn&apos;t open file to write.</source>
+        <translation>Nem lehetett a fájlt megnyitni írásra.</translation>
+    </message>
+    <message>
+        <location filename="graphwidget.cpp" line="154"/>
+        <source>Saved.</source>
+        <translation>Elmentve.</translation>
+    </message>
+    <message>
+        <location filename="graphwidget.cpp" line="174"/>
+        <source>MindMap exported as </source>
+        <translation>Az agytérkép exportálva lett, mint</translation>
+    </message>
+    <message>
+        <location filename="graphwidget.cpp" line="208"/>
+        <source>No active node.</source>
+        <translation>Nincs aktív csúcs.</translation>
+    </message>
+    <message>
+        <location filename="graphwidget.cpp" line="220"/>
+        <source>Edge adding cancelled.</source>
+        <oldsource>Edge adding cancelled</oldsource>
+        <translation>Él hozzáadása megszakítva.</translation>
+    </message>
+    <message>
+        <location filename="graphwidget.cpp" line="225"/>
+        <source>Edge deleting cancelled.</source>
+        <oldsource>Edge deleting cancelled</oldsource>
+        <translation>Él törlés megszakítva.</translation>
+    </message>
+    <message>
+        <location filename="graphwidget.cpp" line="333"/>
+        <source>Last node cannot be deleted.</source>
+        <translation>Az utolsó csúcs nem törölhető.</translation>
+    </message>
+    <message>
+        <location filename="graphwidget.cpp" line="352"/>
+        <source>Add edge: select destination node.</source>
+        <translation>Él hozzáadásához válassz ki cél csúcsot.</translation>
+    </message>
+    <message>
+        <location filename="graphwidget.cpp" line="358"/>
+        <source>Delete edge: select other end-node.</source>
+        <translation>Él törléséhez válaszd ki a másik csúcsot.</translation>
+    </message>
+    <message>
+        <location filename="graphwidget.cpp" line="504"/>
+        <source>There is already an edge between these two nodes.</source>
+        <translation>Már létezik él e két csúcs között.</translation>
+    </message>
+    <message>
+        <location filename="graphwidget.cpp" line="517"/>
+        <source>There no edge between these two nodes.</source>
+        <translation>Nincs él e között a két csúcs között.</translation>
     </message>
 </context>
 <context>
@@ -105,108 +149,288 @@ p, li { white-space: pre-wrap; }
     <message>
         <location filename="mainwindow.ui" line="14"/>
         <source>QtMindMap</source>
-        <translation type="unfinished">QtMindMap</translation>
+        <translation>QtMindMap</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="28"/>
+        <location filename="mainwindow.ui" line="32"/>
         <source>&amp;File</source>
-        <translation type="unfinished">Fajl</translation>
+        <translation>&amp;Fájl</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="41"/>
+        <location filename="mainwindow.ui" line="46"/>
         <source>&amp;Help</source>
-        <translation type="unfinished">Segitseg</translation>
+        <translation>&amp;Segítség</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="59"/>
+        <location filename="mainwindow.ui" line="68"/>
         <source>&amp;New</source>
-        <translation type="unfinished">Uj</translation>
+        <translation>&amp;Új</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="67"/>
+        <location filename="mainwindow.ui" line="79"/>
         <source>&amp;Open</source>
-        <translation type="unfinished">Megnyitas</translation>
+        <translation>Meg&amp;nyitás</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="75"/>
+        <location filename="mainwindow.ui" line="90"/>
         <source>&amp;Save</source>
-        <translation type="unfinished">Mentes</translation>
+        <translation>&amp;Mentés</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="83"/>
+        <location filename="mainwindow.ui" line="98"/>
         <source>&amp;Quit</source>
-        <translation type="unfinished">Kilepes</translation>
+        <translation>&amp;Kilépés</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="91"/>
+        <location filename="mainwindow.ui" line="106"/>
         <source>&amp;About QtMindMap</source>
-        <translation type="unfinished">A QtMindMap-rol</translation>
+        <translation>A QtMindMap-ről</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="96"/>
+        <location filename="mainwindow.ui" line="114"/>
         <source>&amp;Close</source>
-        <translation type="unfinished">Bezaras</translation>
+        <translation>&amp;Bezárás</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="104"/>
+        <location filename="mainwindow.ui" line="122"/>
         <source>E&amp;xport</source>
-        <translation type="unfinished">E&amp;xportalas</translation>
+        <translation>E&amp;xportálás</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="107"/>
+        <location filename="mainwindow.ui" line="125"/>
         <source>Export</source>
-        <translation type="unfinished">Exportalas</translation>
+        <translation>Exportálás</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="71"/>
+        <location filename="mainwindow.ui" line="136"/>
+        <source>Save&amp;As</source>
+        <translation>Mentés min&amp;t</translation>
+    </message>
+    <message>
+        <location filename="mainwindow.ui" line="139"/>
+        <source>Ctrl+A</source>
+        <translation>Ctrl+A</translation>
+    </message>
+    <message>
+        <location filename="mainwindow.ui" line="144"/>
+        <source>&amp;Keys</source>
+        <translation type="unfinished">&amp;Billentyűk</translation>
+    </message>
+    <message>
+        <location filename="mainwindow.cpp" line="94"/>
+        <source>Open MindMap</source>
+        <translation>Agytérkép megynyitása</translation>
+    </message>
+    <message>
+        <location filename="mainwindow.cpp" line="132"/>
+        <source>Save MindMap as</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="mainwindow.cpp" line="200"/>
         <source>Export MindMap to image</source>
-        <translation type="unfinished">Az agyterkep kepkent exportalasa</translation>
+        <translation>Az agytérkép képként exportálása</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="73"/>
+        <location filename="mainwindow.cpp" line="202"/>
         <source>PNG image file (*.png)</source>
-        <translation type="unfinished">PNG kep file (*.png)</translation>
+        <translation>PNG kép fájl (*.png)</translation>
+    </message>
+    <message>
+        <location filename="mainwindow.cpp" line="215"/>
+        <source>Keys of QtMindMap</source>
+        <translation>A QtMindMap billentyűkiosztása</translation>
+    </message>
+    <message>
+        <location filename="mainwindow.cpp" line="216"/>
+        <source>Usage of keys &amp; mouse buttons</source>
+        <translation>A billentyűk és az egér használata</translation>
+    </message>
+    <message>
+        <location filename="mainwindow.cpp" line="221"/>
+        <source>Keys</source>
+        <translation>Billentyúk</translation>
+    </message>
+    <message>
+        <location filename="mainwindow.cpp" line="223"/>
+        <location filename="mainwindow.cpp" line="259"/>
+        <source>zoom in/out of the view</source>
+        <translation>A nézeten ki/be nagyítás</translation>
+    </message>
+    <message>
+        <location filename="mainwindow.cpp" line="225"/>
+        <source>cursors</source>
+        <translation>Kurzor gombok</translation>
+    </message>
+    <message>
+        <location filename="mainwindow.cpp" line="227"/>
+        <source>move view scrollbars</source>
+        <translation>A nézet gördítősávjának mozgatása</translation>
+    </message>
+    <message>
+        <location filename="mainwindow.cpp" line="229"/>
+        <source>ctrl + cursors</source>
+        <translation>ctrl + korzor gombok</translation>
+    </message>
+    <message>
+        <location filename="mainwindow.cpp" line="231"/>
+        <source>move active node</source>
+        <translation>Az aktív csúcs mozgatása</translation>
+    </message>
+    <message>
+        <location filename="mainwindow.cpp" line="233"/>
+        <source>remove active node</source>
+        <translation>Az aktív csúcs törlése</translation>
+    </message>
+    <message>
+        <location filename="mainwindow.cpp" line="235"/>
+        <source>add new node to active node</source>
+        <translation>Új csúcs hozzáadása az aktív csúcshoz</translation>
+    </message>
+    <message>
+        <location filename="mainwindow.cpp" line="237"/>
+        <source>enter/leave hint mode (vimperator style select)</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="mainwindow.cpp" line="239"/>
+        <source>numbers, backspace, enter</source>
+        <translation>számok, törlés, enter</translation>
+    </message>
+    <message>
+        <location filename="mainwindow.cpp" line="241"/>
+        <source>select numbers in hint mode</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="mainwindow.cpp" line="243"/>
+        <source>edit active node</source>
+        <translation>Az aktív csúcs szerkesztése.</translation>
+    </message>
+    <message>
+        <location filename="mainwindow.cpp" line="245"/>
+        <source>leaving node editing/adding/deleting mode</source>
+        <translation>A szerkesztés/éltörlés/élhozzáadás mód elhagyása.</translation>
+    </message>
+    <message>
+        <location filename="mainwindow.cpp" line="247"/>
+        <source>editing mode: ctrl+cursors</source>
+        <translation>Szerkesző mód: ctrl + kurzorok</translation>
+    </message>
+    <message>
+        <location filename="mainwindow.cpp" line="249"/>
+        <source>jump to beginning of next/prev word</source>
+        <translation>A következő/előző szó elejére ugrás.</translation>
+    </message>
+    <message>
+        <location filename="mainwindow.cpp" line="251"/>
+        <source>add new edge to active node (select the destination)</source>
+        <translation>Az aktív csúcshoz új él hozzáadása (válaszd ki az él másik végpontját)</translation>
+    </message>
+    <message>
+        <location filename="mainwindow.cpp" line="253"/>
+        <source>delete edge of active node (select other end)</source>
+        <translation>Az aktív csúcsról él törlése (válaszd ki az él másik csúcspontját)</translation>
+    </message>
+    <message>
+        <location filename="mainwindow.cpp" line="255"/>
+        <source>Mouse</source>
+        <translation>Egér</translation>
+    </message>
+    <message>
+        <location filename="mainwindow.cpp" line="257"/>
+        <source>scroll</source>
+        <translation>görgetés</translation>
+    </message>
+    <message>
+        <location filename="mainwindow.cpp" line="261"/>
+        <source>click</source>
+        <translation>klikk</translation>
+    </message>
+    <message>
+        <location filename="mainwindow.cpp" line="263"/>
+        <source>select node</source>
+        <translation>csúcs kiválasztása</translation>
+    </message>
+    <message>
+        <location filename="mainwindow.cpp" line="265"/>
+        <source>double clikk</source>
+        <translation>duplakatt</translation>
+    </message>
+    <message>
+        <location filename="mainwindow.cpp" line="267"/>
+        <source>set node editable</source>
+        <translation>a csúcs szerkeszthetővé tétele.</translation>
+    </message>
+    <message>
+        <location filename="mainwindow.cpp" line="269"/>
+        <source>drag</source>
+        <translation>megragadás</translation>
+    </message>
+    <message>
+        <location filename="mainwindow.cpp" line="271"/>
+        <source>move node</source>
+        <translation>A csúcs mozgatása.</translation>
+    </message>
+    <message>
+        <location filename="mainwindow.cpp" line="280"/>
+        <source>About QtMindMap</source>
+        <translation>A QtMindMap-ről</translation>
+    </message>
+    <message>
+        <location filename="mainwindow.cpp" line="281"/>
+        <source>MindMap software written in Qt.</source>
+        <translation>Agytérkép program Qt-ben írva.</translation>
+    </message>
+    <message>
+        <location filename="mainwindow.cpp" line="283"/>
+        <source>Homepage:</source>
+        <translation>Honlap:</translation>
+    </message>
+    <message>
+        <location filename="mainwindow.cpp" line="285"/>
+        <source>Report bugs to:</source>
+        <translation>Ide jelentsd a hibákat:</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="99"/>
         <source>MindMap exported as </source>
-        <translation type="unfinished">Az agyterkep exportalva lett, mint</translation>
+        <translation type="obsolete">Az agyterkep exportalva lett, mint</translation>
     </message>
 </context>
 <context>
     <name>QObject</name>
     <message>
-        <location filename="main.cpp" line="51"/>
+        <location filename="main.cpp" line="48"/>
         <source>QtMindMap Error</source>
-        <translation type="unfinished">QtMindMap hiba</translation>
+        <translation>QtMindMap hiba</translation>
     </message>
     <message>
-        <location filename="main.cpp" line="52"/>
+        <location filename="main.cpp" line="49"/>
         <source>I couldn&apos;t detect any system tray on this system.</source>
-        <translation type="unfinished">Nem talalhato talca a jelenlegi rendszerben.</translation>
+        <translation>Nem található tálca a jelenlegi rendszerben.</translation>
     </message>
 </context>
 <context>
     <name>SystemTray</name>
     <message>
-        <location filename="systemtray.cpp" line="13"/>
+        <location filename="systemtray.cpp" line="9"/>
         <source>Mi&amp;nimize</source>
-        <translation type="unfinished">&amp;Talcara</translation>
+        <translation>&amp;Tálcára</translation>
     </message>
     <message>
-        <location filename="systemtray.cpp" line="16"/>
+        <location filename="systemtray.cpp" line="13"/>
         <source>Ma&amp;ximize</source>
-        <translation type="unfinished">Teljes &amp;meret</translation>
+        <translation>Teljes &amp;méret</translation>
     </message>
     <message>
-        <location filename="systemtray.cpp" line="19"/>
+        <location filename="systemtray.cpp" line="17"/>
         <source>&amp;Restore</source>
-        <translation type="unfinished">&amp;Visszaallita</translation>
+        <translation>&amp;Visszaállítás</translation>
     </message>
     <message>
-        <location filename="systemtray.cpp" line="22"/>
+        <location filename="systemtray.cpp" line="21"/>
         <source>&amp;Quit</source>
-        <translation type="unfinished">&amp;Kilepes</translation>
+        <translation>&amp;Kilépés</translation>
     </message>
 </context>
 </TS>
diff --git a/systemtray.cpp b/systemtray.cpp
index 1e24787..dfc07e1 100644
--- a/systemtray.cpp
+++ b/systemtray.cpp
@@ -31,8 +31,8 @@ void SystemTray::setup()
 
     m_systemTrayIcon->setContextMenu(m_trayIconMenu);
 
-    m_icon = new QIcon(":/heart.svg");
-    m_systemTrayIcon->setIcon(QIcon(":/heart.svg"));
+    m_icon = new QIcon(":/qtmindmap.svg");
+    m_systemTrayIcon->setIcon(QIcon(":/qtmindmap.svg"));
 }
 
 SystemTray::SystemTray(MainWindow *mainWindow, QWidget *parent) :