diff --git a/src/main/java/envoy/client/Chat.java b/src/main/java/envoy/client/Chat.java
index abeb226..da35bd3 100644
--- a/src/main/java/envoy/client/Chat.java
+++ b/src/main/java/envoy/client/Chat.java
@@ -10,7 +10,7 @@ import envoy.schema.User;
 public class Chat implements Serializable {
 
 	private static final long serialVersionUID = -7751248474547242056L;
-	
+
 	private User						recipient;
 	private DefaultListModel<Message>	model	= new DefaultListModel<>();
 
diff --git a/src/main/java/envoy/client/Client.java b/src/main/java/envoy/client/Client.java
index 0ebce3c..a0878e2 100644
--- a/src/main/java/envoy/client/Client.java
+++ b/src/main/java/envoy/client/Client.java
@@ -28,9 +28,8 @@ import envoy.schema.Users;
  * @author Kai S. K. Engelbart
  * @author Maximilian K&auml;fer
  * @author Leon Hofmeister
- * @since Envoy 0.1
+ * @since Envoy v0.1-alpha
  */
-
 public class Client {
 
 	private ObjectFactory	objectFactory	= new ObjectFactory();
@@ -53,9 +52,8 @@ public class Client {
 	 * Because sending a request is a blocking operation, it is executed
 	 * asynchronously.
 	 * 
-	 * @param sender      name of the sender
-	 * @param recipient   name of the recipient
-	 * @param textContent content (text) of the message
+	 * @param message the {@link Message} we want to send
+	 * @since Envoy v0.1-alpha
 	 */
 	public void sendMessage(Message message) {
 		new Thread(() -> {
@@ -90,6 +88,7 @@ public class Client {
 	 * 
 	 * @param textContent The content (text) of the message
 	 * @return prepared {@link Message} object
+	 * @since Envoy v0.1-alpha
 	 */
 	public Message createMessage(String textContent) {
 		Message.MetaData metaData = objectFactory.createMessageMetaData();
@@ -109,22 +108,28 @@ public class Client {
 		return message;
 	}
 
-	public Users getUsersListXml() { return get(String.format("%s:%d/envoy-server/rest/user", config.getServer(), config.getPort()), Users.class); }
+	public Users getUsersListXml() {
+		return get(String.format("%s:%d/envoy-server/rest/user", config.getServer(), config.getPort()), Users.class);
+	}
 
 	public Messages getUnreadMessages(long userId) {
-		return get(String.format("%s:%d/envoy-server/rest/message/receive?userId=%d", config.getServer(), config.getPort(), userId), Messages.class);
+		return get(String
+			.format("%s:%d/envoy-server/rest/message/receive?userId=%d", config.getServer(), config.getPort(), userId),
+				Messages.class);
 	}
 
 	/**
-	 * Returns a {@link User} with a specific name by name.
+	 * Returns a {@link User} with a specific id by name.
 	 * 
 	 * @param name - the name of the {@link User}
 	 * @return a {@link User} with the specified name
 	 * @since Envoy v0.1-alpha
 	 */
 	private User getUser(String name) {
-		return get(String.format("%s:%d/envoy-server/rest/user/sender?name=%s", config.getServer(), config.getPort(), name), Users.class).getUser()
-			.get(0);
+		return get(
+				String
+					.format("%s:%d/envoy-server/rest/user/sender?name=%s", config.getServer(), config.getPort(), name),
+				Users.class).getUser().get(0);
 	}
 
 	/**
@@ -166,9 +171,21 @@ public class Client {
 	 */
 	public User getSender() { return sender; }
 
+	/**
+	 * @return the recipient of a message
+	 * @since Envoy v0.1-alpha
+	 */
 	public User getRecipient() { return recipient; }
 
+	/**
+	 * @param recipient the recipient to set
+	 * @since Envoy v0.1-alpha
+	 */
 	public void setRecipient(User recipient) { this.recipient = recipient; }
 
+	/**
+	 * @return true, if a recipient is selected
+	 * @since Envoy v0.1-alpha
+	 */
 	public boolean hasRecipient() { return recipient != null; }
-}
\ No newline at end of file
+}
diff --git a/src/main/java/envoy/client/Config.java b/src/main/java/envoy/client/Config.java
index 1d107ca..bfa1e57 100644
--- a/src/main/java/envoy/client/Config.java
+++ b/src/main/java/envoy/client/Config.java
@@ -59,7 +59,9 @@ public class Config {
 	 * @return {@code true} if server, port and localDB directory are known.
 	 * @since Envoy v0.1-alpha
 	 */
-	public boolean isInitialized() { return server != null && !server.isEmpty() && port > 0 && port < 65566 && localDB != null; }
+	public boolean isInitialized() {
+		return server != null && !server.isEmpty() && port > 0 && port < 65566 && localDB != null;
+	}
 
 	/**
 	 * @return the host name of the Envoy server
diff --git a/src/main/java/envoy/client/LocalDB.java b/src/main/java/envoy/client/LocalDB.java
index d7b3409..1bab251 100644
--- a/src/main/java/envoy/client/LocalDB.java
+++ b/src/main/java/envoy/client/LocalDB.java
@@ -23,16 +23,16 @@ import envoy.schema.User;
 public class LocalDB {
 
 	private File		localDB;
-	private User		sender;
+	private User		client;
 	private List<Chat>	chats	= new ArrayList<>();
 
 	/**
 	 * Constructs an empty local database.
 	 *
-	 * @param sender the user that is logged in with this client
+	 * @param client the user that is logged in with this client
 	 * @since Envoy v0.1-alpha
 	 **/
-	public LocalDB(User sender) { this.sender = sender; }
+	public LocalDB(User sender) { this.client = sender; }
 
 	/**
 	 * Initializes the local database and fills it with values
@@ -43,9 +43,9 @@ public class LocalDB {
 	 * @since Envoy v0.1-alpha
 	 **/
 	public void initializeDBFile(File localDBDir) throws EnvoyException {
-		if (localDBDir.exists() && !localDBDir.isDirectory())
-			throw new EnvoyException(String.format("LocalDBDir '%s' is not a directory!", localDBDir.getAbsolutePath()));
-		localDB = new File(localDBDir, sender.getID() + ".db");
+		if (localDBDir.exists() && !localDBDir.isDirectory()) throw new EnvoyException(
+				String.format("LocalDBDir '%s' is not a directory!", localDBDir.getAbsolutePath()));
+		localDB = new File(localDBDir, client.getID() + ".db");
 		if (localDB.exists()) loadFromLocalDB();
 	}
 
@@ -89,8 +89,14 @@ public class LocalDB {
 
 	/**
 	 * @return all saves {@link Chat} objects that list the client user as the
-	 *         sender
+	 *         client
 	 * @since Envoy v0.1-alpha
 	 **/
 	public List<Chat> getChats() { return chats; }
+
+	/**
+	 * @return the User who initialised the local Database
+	 * @since Envoy v0.1-alpha
+	 */
+	public User getUser() { return client; }
 }
diff --git a/src/main/java/envoy/client/ui/ChatWindow.java b/src/main/java/envoy/client/ui/ChatWindow.java
index 5f79b13..f8c2fcf 100644
--- a/src/main/java/envoy/client/ui/ChatWindow.java
+++ b/src/main/java/envoy/client/ui/ChatWindow.java
@@ -6,6 +6,8 @@ import java.awt.Font;
 import java.awt.GridBagConstraints;
 import java.awt.GridBagLayout;
 import java.awt.Insets;
+import java.awt.event.KeyAdapter;
+import java.awt.event.KeyEvent;
 import java.awt.event.WindowAdapter;
 import java.awt.event.WindowEvent;
 
@@ -39,7 +41,7 @@ import envoy.schema.Users;
  * @author Kai S. K. Engelbart
  * @author Maximilian K&auml;fer
  * @author Leon Hofmeister
- * @since Envoy 0.1
+ * @since Envoy v0.1-alpha
  */
 public class ChatWindow extends JFrame {
 
@@ -53,6 +55,8 @@ public class ChatWindow extends JFrame {
 	private JList<User>	userList	= new JList<>();
 	private Chat		currentChat;
 
+	private JTextArea messageEnterTextArea;
+
 	public ChatWindow(Client client, LocalDB localDB) {
 		this.client		= client;
 		this.localDB	= localDB;
@@ -77,7 +81,7 @@ public class ChatWindow extends JFrame {
 		gbl_contentPane.columnWidths	= new int[] { 1, 1, 1 };
 		gbl_contentPane.rowHeights		= new int[] { 1, 1, 1 };
 		gbl_contentPane.columnWeights	= new double[] { 0.3, 1.0, 0.1 };
-		gbl_contentPane.rowWeights		= new double[] { 0.05, 1, 0.07 };
+		gbl_contentPane.rowWeights		= new double[] { 0.05, 1.0, 0.07 };
 		contentPane.setLayout(gbl_contentPane);
 
 		JList<Message> messageList = new JList<>();
@@ -113,23 +117,38 @@ public class ChatWindow extends JFrame {
 		contentPane.add(scrollPane, gbc_scrollPane);
 
 		// Message enter field
-		JTextArea messageEnterTextfield = new JTextArea();
-		messageEnterTextfield.setCaretColor(new Color(255, 255, 255));
-		messageEnterTextfield.setForeground(new Color(255, 255, 255));
-		messageEnterTextfield.setBackground(new Color(51, 51, 51));
-		messageEnterTextfield.setLineWrap(true);
-		messageEnterTextfield.setBorder(null);
-		messageEnterTextfield.setFont(new Font("Arial", Font.PLAIN, 17));
-		messageEnterTextfield.setBorder(new EmptyBorder(5, 5, 5, 5));
+		messageEnterTextArea = new JTextArea();
+		messageEnterTextArea.addKeyListener(new KeyAdapter() {
 
-		GridBagConstraints gbc_moveSelectionMessageEnterTextfield = new GridBagConstraints();
-		gbc_moveSelectionMessageEnterTextfield.fill		= GridBagConstraints.BOTH;
-		gbc_moveSelectionMessageEnterTextfield.gridx	= 1;
-		gbc_moveSelectionMessageEnterTextfield.gridy	= 2;
+			@Override
+			public void keyReleased(KeyEvent e) {
 
-		gbc_moveSelectionMessageEnterTextfield.insets = new Insets(10, 10, 10, 10);
+				if (e.getKeyCode() == KeyEvent.VK_ENTER && ((SettingsScreen.enterToSend && e.getModifiersEx() == 0)
+						|| (e.getModifiersEx() == KeyEvent.CTRL_DOWN_MASK))) {
+					postMessage(client, messageList);
 
-		contentPane.add(messageEnterTextfield, gbc_moveSelectionMessageEnterTextfield);
+				}
+
+			}
+		});
+		// Checks for changed Message
+		messageEnterTextArea.setWrapStyleWord(true);
+		messageEnterTextArea.setCaretColor(new Color(255, 255, 255));
+		messageEnterTextArea.setForeground(new Color(255, 255, 255));
+		messageEnterTextArea.setBackground(new Color(51, 51, 51));
+		messageEnterTextArea.setLineWrap(true);
+		messageEnterTextArea.setBorder(null);
+		messageEnterTextArea.setFont(new Font("Arial", Font.PLAIN, 17));
+		messageEnterTextArea.setBorder(new EmptyBorder(5, 5, 5, 5));
+
+		GridBagConstraints gbc_messageEnterTextfield = new GridBagConstraints();
+		gbc_messageEnterTextfield.fill	= GridBagConstraints.BOTH;
+		gbc_messageEnterTextfield.gridx	= 1;
+		gbc_messageEnterTextfield.gridy	= 2;
+
+		gbc_messageEnterTextfield.insets = new Insets(10, 10, 10, 10);
+
+		contentPane.add(messageEnterTextArea, gbc_messageEnterTextfield);
 
 		// Post Button
 		JButton postButton = new JButton("Post");
@@ -145,35 +164,34 @@ public class ChatWindow extends JFrame {
 
 		gbc_moveSelectionPostButton.insets = new Insets(10, 10, 10, 10);
 
-		postButton.addActionListener((evt) -> {
-			if (!client.hasRecipient()) {
-				JOptionPane.showMessageDialog(this, "Please select a recipient!", "Cannot send message", JOptionPane.INFORMATION_MESSAGE);
-				return;
-			}
+		postButton.addActionListener((evt) -> { postMessage(client, messageList); });
 
-			if (!messageEnterTextfield.getText().isEmpty()) try {
+		contentPane.add(postButton, gbc_moveSelectionPostButton);
 
-				// Create and send message object
-				final Message message = client.createMessage(messageEnterTextfield.getText());
-				client.sendMessage(message);
+		// Settings Button
+		JButton settingsButton = new JButton("Settings");
+		settingsButton.setForeground(new Color(255, 255, 255));
+		settingsButton.setBackground(new Color(102, 51, 153));
+		settingsButton.setBorderPainted(false);
 
-				// Append message object to chat
-				currentChat.appendMessage(message);
-				messageList.setModel(currentChat.getModel());
+		GridBagConstraints gbc_moveSelectionSettingsButton = new GridBagConstraints();
 
-				// Clear text field
-				messageEnterTextfield.setText("");
-				contentPane.revalidate();
+		gbc_moveSelectionSettingsButton.fill	= GridBagConstraints.BOTH;
+		gbc_moveSelectionSettingsButton.gridx	= 2;
+		gbc_moveSelectionSettingsButton.gridy	= 0;
+
+		gbc_moveSelectionSettingsButton.insets = new Insets(10, 10, 10, 10);
+
+		settingsButton.addActionListener((evt) -> {
+			try {
+				SettingsScreen.open(localDB.getUser().getName());
 			} catch (Exception e) {
-				JOptionPane.showMessageDialog(this,
-						"An exception occured while sending a message. See the log for more details.",
-						"Exception occured",
-						JOptionPane.ERROR_MESSAGE);
+				SettingsScreen.open();
+				System.err.println("An error occured while opening the settings screen: " + e);
 				e.printStackTrace();
 			}
 		});
-
-		contentPane.add(postButton, gbc_moveSelectionPostButton);
+		contentPane.add(settingsButton, gbc_moveSelectionSettingsButton);
 
 		// Partner name display
 		JTextPane textPane = new JTextPane();
@@ -183,10 +201,9 @@ public class ChatWindow extends JFrame {
 		textPane.setFont(new Font("Arial", Font.PLAIN, 20));
 
 		GridBagConstraints gbc_partnerName = new GridBagConstraints();
-		gbc_partnerName.fill		= GridBagConstraints.HORIZONTAL;
-		gbc_partnerName.gridwidth	= 2;
-		gbc_partnerName.gridx		= 1;
-		gbc_partnerName.gridy		= 0;
+		gbc_partnerName.fill	= GridBagConstraints.HORIZONTAL;
+		gbc_partnerName.gridx	= 1;
+		gbc_partnerName.gridy	= 0;
 
 		gbc_partnerName.insets = new Insets(0, 10, 0, 10);
 		contentPane.add(textPane, gbc_partnerName);
@@ -200,7 +217,11 @@ public class ChatWindow extends JFrame {
 				final User			user				= selectedUserList.getSelectedValue();
 				client.setRecipient(user);
 
-				currentChat = localDB.getChats().stream().filter(chat -> chat.getRecipient().getID() == user.getID()).findFirst().get();
+				currentChat = localDB.getChats()
+					.stream()
+					.filter(chat -> chat.getRecipient().getID() == user.getID())
+					.findFirst()
+					.get();
 
 				client.setRecipient(user);
 
@@ -233,9 +254,51 @@ public class ChatWindow extends JFrame {
 		contentPane.revalidate();
 	}
 
+	/**
+	 * Posts a {@link Message}. Is used only twice: Once for clicking on the
+	 * {@code postButton}<br>
+	 * and once for pressing the KeyStroke(s) to send a message ( (ctrl+)enter)
+	 * 
+	 * @param client      the client who wants to send a {@link Message}
+	 * @param messageList the chat in which this {@link Message} belongs
+	 * @since Envoy v0.1-alpha
+	 */
+	private void postMessage(Client client, JList<Message> messageList) {
+		if (!client.hasRecipient()) {
+			JOptionPane.showMessageDialog(this,
+					"Please select a recipient!",
+					"Cannot send message",
+					JOptionPane.INFORMATION_MESSAGE);
+			return;
+		}
+
+		if (!messageEnterTextArea.getText().isEmpty()) try {
+
+			// Create and send message object
+			final Message message = client.createMessage(messageEnterTextArea.getText());
+			client.sendMessage(message);
+
+			// Append message object to chat
+			currentChat.appendMessage(message);
+			messageList.setModel(currentChat.getModel());
+
+			// Clear text field
+			messageEnterTextArea.setText("");
+			contentPane.revalidate();
+		} catch (Exception e) {
+			JOptionPane.showMessageDialog(this,
+					"An exception occured while sending a message. See the log for more details.",
+					"Exception occured",
+					JOptionPane.ERROR_MESSAGE);
+			e.printStackTrace();
+		}
+	}
+
 	/**
 	 * Initializes the elements of the user list by downloading them from the
 	 * server.
+	 * 
+	 * @since Envoy v0.1-alpha
 	 */
 	private void loadUsersAndChats() {
 		new Thread(() -> {
@@ -257,14 +320,17 @@ public class ChatWindow extends JFrame {
 	 * 
 	 * @param timeout the amount of time that passes between two requests sent to
 	 *                the server
+	 * @since Envoy v0.1-alpha
 	 */
 	private void startReceiverThread(int timeout) {
 		new Timer(timeout, (evt) -> {
 			Messages unreadMessages = client.getUnreadMessages(client.getSender().getID());
 			for (int i = 0; i < unreadMessages.getMessage().size(); i++)
 				for (int j = 0; j < localDB.getChats().size(); j++)
-					if (localDB.getChats().get(j).getRecipient().getID() == unreadMessages.getMessage().get(i).getMetaData().getSender())
-						localDB.getChats().get(j).appendMessage(unreadMessages.getMessage().get(i));
+					if (localDB.getChats().get(j).getRecipient().getID() == unreadMessages.getMessage()
+						.get(i)
+						.getMetaData()
+						.getSender()) localDB.getChats().get(j).appendMessage(unreadMessages.getMessage().get(i));
 		}).start();
 	}
 }
\ No newline at end of file
diff --git a/src/main/java/envoy/client/ui/SettingsScreen.java b/src/main/java/envoy/client/ui/SettingsScreen.java
new file mode 100644
index 0000000..7d5de28
--- /dev/null
+++ b/src/main/java/envoy/client/ui/SettingsScreen.java
@@ -0,0 +1,156 @@
+package envoy.client.ui;
+
+import java.awt.BorderLayout;
+import java.awt.Color;
+import java.awt.FlowLayout;
+
+import javax.swing.JButton;
+import javax.swing.JDialog;
+import javax.swing.JPanel;
+import javax.swing.border.EmptyBorder;
+
+/**
+ * Project: <strong>envoy-client</strong><br>
+ * File: <strong>SettingsScreen.java</strong><br>
+ * Created: <strong>31 Oct 2019</strong><br>
+ * 
+ * @author Leon Hofmeister
+ */
+public class SettingsScreen extends JDialog {
+
+	private static final long	serialVersionUID	= -4476913491263077107L;
+	private final JPanel		contentPanel		= new JPanel();
+	public static boolean		enterToSend			= true;
+
+	// TODO: Add a JPanel with all the Information necessary:
+	// change (Picture,Username, Email, Password) and toggle(light/dark mode,
+	// "ctrl+enter"/"enter"
+	// to send a message directly)
+	/**
+	 * Open the Settings screen.
+	 * Only suited for Dev/Error mode.
+	 * Avoid usage.
+	 * 
+	 * @since Envoy v0.1-alpha
+	 */
+	public static void open() { open(new SettingsScreen()); }
+
+	/**
+	 * Opens the Settings screen.<br>
+	 * Use preferably since everyone is already initialised.<br>
+	 * It personalises the screen more.
+	 * 
+	 * @param username The name of the User
+	 * @param Email    The Email that is associated with that Account
+	 * @since Envoy v0.1-alpha
+	 */
+	public static void open(String username) {// , String Email) {AUSKLAMMERN, WENN ANMELDUNG PER
+												// EMAIL IMPLEMENTIERT IST!
+		open(new SettingsScreen(username));
+	}
+
+	public static void open(SettingsScreen dialog) {
+		dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
+		dialog.setModal(true);
+		dialog.setVisible(true);
+	}
+
+	/**
+	 * Builds the Settings screen.<br>
+	 * Use only as Dev/Error Mode.<br>
+	 * Avoid usage.
+	 * 
+	 * @since Envoy v0.1-alpha
+	 */
+	public SettingsScreen() {
+		setBackground(Color.BLACK);
+		setBounds(100, 100, 450, 300);
+		getContentPane().setLayout(new BorderLayout());
+		contentPanel.setBackground(Color.BLACK);
+		contentPanel.setBorder(new EmptyBorder(5, 5, 5, 5));
+		getContentPane().add(contentPanel, BorderLayout.CENTER);
+		contentPanel.setLayout(new BorderLayout(0, 0));
+		{
+			JPanel buttonPane = new JPanel();
+			buttonPane.setBackground(Color.BLACK);
+			getContentPane().add(buttonPane, BorderLayout.SOUTH);
+			buttonPane.setLayout(new BorderLayout(0, 0));
+			{
+				JButton okButton = new JButton("Save");
+				okButton.setActionCommand("OK");
+				buttonPane.add(okButton, BorderLayout.EAST);
+				getRootPane().setDefaultButton(okButton);
+				okButton.addActionListener((evt) -> {
+					// Hier später die Daten abspeichern, wenn Datenmodell implementiert ist
+					dispose();
+				});
+			}
+			{
+				JButton cancelButton = new JButton("Cancel");
+				cancelButton.setActionCommand("Cancel");
+				buttonPane.add(cancelButton, BorderLayout.WEST);
+
+				cancelButton.addActionListener((evt) -> { dispose(); });
+			}
+		}
+	}
+
+	/**
+	 * Builds the Settings screen.<br>
+	 * Use preferreably since everyone is already initialised.<br>
+	 * It personalises the screen more.
+	 * 
+	 * @param Username The name of the User
+	 * @param Email    The Email that is associated with that Account
+	 * @since Envoy v0.1-alpha
+	 */
+	public SettingsScreen(String Username) {// , String Email, String hashedPwd) {AUSKLAMMERN, WENN ANMELDUNG PER EMAIL
+											// IMPLEMENTIERT IST!
+		setBackground(Color.BLACK);
+		setBounds(100, 100, 450, 300);
+		getContentPane().setLayout(new BorderLayout());
+		contentPanel.setBackground(Color.BLACK);
+		contentPanel.setLayout(new FlowLayout());
+		contentPanel.setBorder(new EmptyBorder(5, 5, 5, 5));
+		getContentPane().add(contentPanel, BorderLayout.CENTER);
+		{
+			JPanel buttonPane = new JPanel();
+			buttonPane.setBackground(Color.BLACK);
+			getContentPane().add(buttonPane, BorderLayout.SOUTH);
+			buttonPane.setLayout(new BorderLayout(0, 0));
+			{
+				JButton okButton = new JButton("Save");
+				okButton.setActionCommand("OK");
+				buttonPane.add(okButton, BorderLayout.EAST);
+				getRootPane().setDefaultButton(okButton);
+				okButton.addActionListener((evt) -> {
+					// Hier später die Daten abspeichern, wenn Datenmodell implementiert ist
+					dispose();
+				});
+			}
+			{
+				JButton cancelButton = new JButton("Cancel");
+				cancelButton.setActionCommand("Cancel");
+				buttonPane.add(cancelButton, BorderLayout.WEST);
+
+				cancelButton.addActionListener((evt) -> { dispose(); });
+			}
+		}
+	}
+
+	/**
+	 * @return true if Enter should be used to send a message instead of ctrl+enter
+	 * @since Envoy v0.1-alpha
+	 */
+	public static boolean isEnterToSend() { return enterToSend; }
+
+	/**
+	 * @param enterToSend <br>
+	 *                    toggles whether a message should be sent via
+	 *                    <br>
+	 *                    buttonpress "enter" or "ctrl"+"enter"
+	 * @since Envoy v0.1-alpha
+	 */
+	public static void setEnterToSend(boolean enterForSend) { enterToSend = enterForSend; }
+	// TODO: Should be changed to private, but later to avoid warnings
+}