diff --git a/CMakeLists.txt b/CMakeLists.txt
index af34113..538adf9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -49,6 +49,9 @@ set(PROJECT_SOURCES
         ipv4settingstab.cpp
         ipv4settingstab.ui
         qvarianthelper.h
+        listeditordialog.h
+        listeditordialog.cpp
+        listeditordialog.ui
         ${TS_FILES}
 )
 
diff --git a/ipv4settingstab.cpp b/ipv4settingstab.cpp
index 0d920ae..ea91f44 100644
--- a/ipv4settingstab.cpp
+++ b/ipv4settingstab.cpp
@@ -7,6 +7,8 @@ Ipv4SettingsTab::Ipv4SettingsTab(QWidget *parent) :
 {
     ui->setupUi(this);
     ui->methodComboBox->addItems(QStringList() << tr("Automatic") << tr("Automatic (address-only)") << tr("Link-Local") << tr("Manual") << tr("Shared to other computers") << tr("Disabled"));
+    connect(ui->editDnsServersButton, &QPushButton::clicked, this, &Ipv4SettingsTab::onEditDnsServersButtonClicked);
+    connect(ui->editSearchDomainsButton, &QPushButton::clicked, this, &Ipv4SettingsTab::onEditSearchDomainsButtonClicked);
 }
 
 Ipv4SettingsTab::~Ipv4SettingsTab()
@@ -107,3 +109,17 @@ void Ipv4SettingsTab::loadSettings(QVariantMap settings)
         ui->ipv4RequiredCheckBox->setChecked(settings["ipv4Required"].toBool());
     }
 }
+
+void Ipv4SettingsTab::onEditDnsServersButtonClicked()
+{
+    ListEditorDialog led(this, ui->dnsServersLineEdit->text(), ',');
+    led.exec();
+    ui->dnsServersLineEdit->setText(led.list());
+}
+
+void Ipv4SettingsTab::onEditSearchDomainsButtonClicked()
+{
+    ListEditorDialog led(this, ui->searchDomainsLineEdit->text(), ',');
+    led.exec();
+    ui->searchDomainsLineEdit->setText(led.list());
+}
diff --git a/ipv4settingstab.h b/ipv4settingstab.h
index 5e77d39..e85d3e6 100644
--- a/ipv4settingstab.h
+++ b/ipv4settingstab.h
@@ -3,6 +3,7 @@
 
 #include "qvarianthelper.h"
 #include "connectionsettingsengine.h"
+#include "listeditordialog.h"
 #include <QWidget>
 
 namespace Ui {
@@ -20,6 +21,10 @@ public:
     QVariantMap readSettings();
     void loadSettings(QVariantMap settings);
 
+private slots:
+    void onEditDnsServersButtonClicked();
+    void onEditSearchDomainsButtonClicked();
+
 private:
     Ui::Ipv4SettingsTab *ui;
 };
diff --git a/listeditordialog.cpp b/listeditordialog.cpp
new file mode 100644
index 0000000..50b748d
--- /dev/null
+++ b/listeditordialog.cpp
@@ -0,0 +1,92 @@
+#include "listeditordialog.h"
+#include "ui_listeditordialog.h"
+
+ListEditorDialog::ListEditorDialog(QWidget *parent, QString listStr, QChar separator) :
+    QDialog(parent),
+    ui(new Ui::ListEditorDialog)
+{
+    ui->setupUi(this);
+    QStringList itemList = listStr.split(separator);
+    for (int i = 0;i < itemList.count();i++) {
+        ui->itemListWidget->addItem(itemList[i]);
+    }
+    origListStr = listStr;
+    listModified = false;
+    connect(ui->addItemButton, &QPushButton::clicked, this, &ListEditorDialog::onAddItemButtonClicked);
+    connect(ui->removeItemButton, &QPushButton::clicked, this, &ListEditorDialog::onRemoveItemButtonClicked);
+    connect(ui->moveUpItemButton, &QPushButton::clicked, this, &ListEditorDialog::onMoveUpItemButtonClicked);
+    connect(ui->moveDownItemButton, &QPushButton::clicked, this, &ListEditorDialog::onMoveDownItemButtonClicked);
+    connect(ui->okButton, &QPushButton::clicked, this, &ListEditorDialog::onOkButtonClicked);
+    connect(ui->cancelButton, &QPushButton::clicked, this, &ListEditorDialog::onCancelButtonClicked);
+}
+
+ListEditorDialog::~ListEditorDialog()
+{
+    delete ui;
+}
+
+QString ListEditorDialog::list()
+{
+    if (!listModified) {
+        return origListStr;
+    } else {
+        QStringList final;
+        for (int i = 0;i < ui->itemListWidget->count();i++) {
+            final.append(ui->itemListWidget->item(i)->text());
+        }
+        return final.join(',');
+    }
+}
+
+void ListEditorDialog::onAddItemButtonClicked()
+{
+    if (ui->newItemLineEdit->text().trimmed() != "") {
+        ui->itemListWidget->addItem(ui->newItemLineEdit->text().trimmed());
+    }
+    ui->newItemLineEdit->setText("");
+}
+
+void ListEditorDialog::onRemoveItemButtonClicked()
+{
+    if (ui->itemListWidget->count() != 0) {
+        delete ui->itemListWidget->item(ui->itemListWidget->currentRow());
+    }
+}
+
+void ListEditorDialog::onMoveUpItemButtonClicked()
+{
+    bool isBottomItemSelected = ui->itemListWidget->currentRow() == ui->itemListWidget->count() - 1;
+    if (ui->itemListWidget->count() != 0 && ui->itemListWidget->currentRow() != 0) {
+        ui->itemListWidget->insertItem(ui->itemListWidget->currentRow() - 1, ui->itemListWidget->takeItem(ui->itemListWidget->currentRow()));
+
+        // Somehow the actively selected item ends up shifting down a row during the removal and reinsertion of the current item.
+        // If the actively selected item is the bottommost one, this has no effect, and so we only move up one row.
+        // Otherwise, we need to move up two rows to compensate.
+        if (isBottomItemSelected) {
+            ui->itemListWidget->setCurrentRow(ui->itemListWidget->currentRow() - 1);
+        } else {
+            ui->itemListWidget->setCurrentRow(ui->itemListWidget->currentRow() - 2);
+        }
+    }
+}
+
+void ListEditorDialog::onMoveDownItemButtonClicked()
+{
+    if (ui->itemListWidget->count() != 0 && ui->itemListWidget->currentRow() != ui->itemListWidget->count() - 1)
+    {
+        ui->itemListWidget->insertItem(ui->itemListWidget->currentRow() + 1, ui->itemListWidget->takeItem(ui->itemListWidget->currentRow()));
+        ui->itemListWidget->setCurrentRow(ui->itemListWidget->currentRow() + 1);
+    }
+}
+
+void ListEditorDialog::onOkButtonClicked()
+{
+    listModified = true;
+    this->close();
+}
+
+void ListEditorDialog::onCancelButtonClicked()
+{
+    listModified = false;
+    this->close();
+}
diff --git a/listeditordialog.h b/listeditordialog.h
new file mode 100644
index 0000000..488e3f0
--- /dev/null
+++ b/listeditordialog.h
@@ -0,0 +1,37 @@
+#ifndef LISTEDITORDIALOG_H
+#define LISTEDITORDIALOG_H
+
+#include <QDialog>
+#include <QString>
+#include <QChar>
+#include <QList>
+#include <QStringList>
+
+namespace Ui {
+class ListEditorDialog;
+}
+
+class ListEditorDialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit ListEditorDialog(QWidget *parent = nullptr, QString listStr = "", QChar separator = '\0');
+    ~ListEditorDialog();
+    QString list();
+
+private slots:
+    void onAddItemButtonClicked();
+    void onRemoveItemButtonClicked();
+    void onMoveUpItemButtonClicked();
+    void onMoveDownItemButtonClicked();
+    void onOkButtonClicked();
+    void onCancelButtonClicked();
+
+private:
+    Ui::ListEditorDialog *ui;
+    QString origListStr;
+    bool listModified;
+};
+
+#endif // LISTEDITORDIALOG_H
diff --git a/listeditordialog.ui b/listeditordialog.ui
new file mode 100644
index 0000000..9c9a56f
--- /dev/null
+++ b/listeditordialog.ui
@@ -0,0 +1,107 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>ListEditorDialog</class>
+ <widget class="QDialog" name="ListEditorDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>430</width>
+    <height>371</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Dialog</string>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout">
+   <item>
+    <widget class="QLineEdit" name="newItemLineEdit"/>
+   </item>
+   <item>
+    <layout class="QHBoxLayout" name="horizontalLayout">
+     <item>
+      <widget class="QListWidget" name="itemListWidget"/>
+     </item>
+     <item>
+      <layout class="QVBoxLayout" name="verticalLayout_3">
+       <item>
+        <widget class="QPushButton" name="addItemButton">
+         <property name="text">
+          <string>Add</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QPushButton" name="removeItemButton">
+         <property name="text">
+          <string>Remove</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QPushButton" name="moveUpItemButton">
+         <property name="text">
+          <string>Move Up</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QPushButton" name="moveDownItemButton">
+         <property name="text">
+          <string>Move Down</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <spacer name="verticalSpacer">
+         <property name="orientation">
+          <enum>Qt::Vertical</enum>
+         </property>
+         <property name="sizeHint" stdset="0">
+          <size>
+           <width>20</width>
+           <height>40</height>
+          </size>
+         </property>
+        </spacer>
+       </item>
+      </layout>
+     </item>
+    </layout>
+   </item>
+   <item>
+    <layout class="QHBoxLayout" name="horizontalLayout_2">
+     <item>
+      <spacer name="horizontalSpacer">
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>40</width>
+         <height>20</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+     <item>
+      <widget class="QPushButton" name="okButton">
+       <property name="text">
+        <string>OK</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QPushButton" name="cancelButton">
+       <property name="text">
+        <string>Cancel</string>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>
diff --git a/security802_1xtab.ui b/security802_1xtab.ui
index 0949100..916c5cf 100644
--- a/security802_1xtab.ui
+++ b/security802_1xtab.ui
@@ -31,7 +31,7 @@
    <item>
     <widget class="QTabWidget" name="authenticationModeTabs">
      <property name="currentIndex">
-      <number>3</number>
+      <number>0</number>
      </property>
      <widget class="QWidget" name="md5Tab">
       <attribute name="title">
@@ -183,7 +183,11 @@
        <item row="4" column="1">
         <layout class="QHBoxLayout" name="horizontalLayout_3">
          <item>
-          <widget class="QLineEdit" name="tlsUserPrivateKeyLineEdit"/>
+          <widget class="QLineEdit" name="tlsUserPrivateKeyLineEdit">
+           <property name="placeholderText">
+            <string>URL (e.g., file:///path/to/file)</string>
+           </property>
+          </widget>
          </item>
          <item>
           <widget class="QPushButton" name="tlsUserPrivateKeyOpenFileButton">
@@ -217,7 +221,11 @@
        <item row="3" column="1">
         <layout class="QHBoxLayout" name="horizontalLayout_2">
          <item>
-          <widget class="QLineEdit" name="tlsUserCertificateLineEdit"/>
+          <widget class="QLineEdit" name="tlsUserCertificateLineEdit">
+           <property name="placeholderText">
+            <string>URL (e.g., file:///path/to/file)</string>
+           </property>
+          </widget>
          </item>
          <item>
           <widget class="QPushButton" name="tlsUserCertificateOpenFileButton">
@@ -231,7 +239,11 @@
        <item row="2" column="1">
         <layout class="QHBoxLayout" name="horizontalLayout">
          <item>
-          <widget class="QLineEdit" name="tlsCaCertificateLineEdit"/>
+          <widget class="QLineEdit" name="tlsCaCertificateLineEdit">
+           <property name="placeholderText">
+            <string>URL (e.g., file:///path/to/file)</string>
+           </property>
+          </widget>
          </item>
          <item>
           <widget class="QPushButton" name="tlsCaCertificateOpenFileButton">
@@ -335,7 +347,11 @@
        <item row="2" column="1">
         <layout class="QHBoxLayout" name="horizontalLayout_4">
          <item>
-          <widget class="QLineEdit" name="fastPacFileLineEdit"/>
+          <widget class="QLineEdit" name="fastPacFileLineEdit">
+           <property name="placeholderText">
+            <string>URL (e.g., file:///path/to/file)</string>
+           </property>
+          </widget>
          </item>
          <item>
           <widget class="QPushButton" name="fastPacFileOpenFileButton">
@@ -508,7 +524,11 @@
        <item row="2" column="1">
         <layout class="QHBoxLayout" name="horizontalLayout_5">
          <item>
-          <widget class="QLineEdit" name="ttlsCaCertificateLineEdit"/>
+          <widget class="QLineEdit" name="ttlsCaCertificateLineEdit">
+           <property name="placeholderText">
+            <string>URL (e.g., file:///path/to/file)</string>
+           </property>
+          </widget>
          </item>
          <item>
           <widget class="QPushButton" name="ttlsCaCertificateOpenFileButton">
@@ -597,7 +617,11 @@
        <item row="2" column="1">
         <layout class="QHBoxLayout" name="horizontalLayout_6">
          <item>
-          <widget class="QLineEdit" name="peapCaCertificateLineEdit"/>
+          <widget class="QLineEdit" name="peapCaCertificateLineEdit">
+           <property name="placeholderText">
+            <string>URL (e.g., file:///path/to/file)</string>
+           </property>
+          </widget>
          </item>
          <item>
           <widget class="QPushButton" name="peapCaCertificateOpenFileButton">