diff --git a/src/Mod/TechDraw/App/Preferences.cpp b/src/Mod/TechDraw/App/Preferences.cpp
index 99e31ed1f5..d06fcc469e 100644
--- a/src/Mod/TechDraw/App/Preferences.cpp
+++ b/src/Mod/TechDraw/App/Preferences.cpp
@@ -612,3 +612,32 @@ double Preferences::SnapLimitFactor()
 }
 
 
+//! returns the key combination that simulates multiple selection. Traditionally Ctrl+pick, as that
+//! is how QGraphicsScene implements multiple selection.  This method is likely to only be used by
+//! developers.
+Qt::KeyboardModifiers Preferences::multiselectModifiers()
+{
+    uint iModifiers = getPreferenceGroup("General")->GetUnsigned("MultiselectModifiers", (uint)Qt::ControlModifier);
+    return (Qt::KeyboardModifiers)iModifiers;
+//    Qt::KeyboardModifiers testMods = Qt::ControlModifier;
+//    return testMods;
+}
+
+
+//! returns the key combination that modifies Balloon drag behaviour so that the bubble and leader
+//! are moved together.  Traditionally Ctrl+drag, but that can be in conflict with multi selection.
+Qt::KeyboardModifiers Preferences::balloonDragModifiers()
+{
+    uint iModifiers = getPreferenceGroup("General")->GetUnsigned("BalloonDragModifier", (uint)Qt::ControlModifier);
+    return (Qt::KeyboardModifiers)iModifiers;
+//    Qt::KeyboardModifiers testMods = Qt::ShiftModifier | Qt::ControlModifier;
+//    return testMods;
+}
+
+
+void Preferences::setBalloonDragModifiers(Qt::KeyboardModifiers newModifiers)
+{
+    getPreferenceGroup("General")->SetUnsigned("BalloonDragModifier", (uint)newModifiers);
+}
+
+
diff --git a/src/Mod/TechDraw/App/Preferences.h b/src/Mod/TechDraw/App/Preferences.h
index b4c46e945f..ab8b7d2f75 100644
--- a/src/Mod/TechDraw/App/Preferences.h
+++ b/src/Mod/TechDraw/App/Preferences.h
@@ -23,6 +23,7 @@
 #ifndef Preferences_h_
 #define Preferences_h_
 
+#include <Qt>
 #include <string>
 
 #include <Base/Parameter.h>
@@ -141,6 +142,11 @@ public:
 
     static bool SnapViews();
     static double SnapLimitFactor();
+
+    static Qt::KeyboardModifiers multiselectModifiers();
+
+    static Qt::KeyboardModifiers balloonDragModifiers();
+    static void setBalloonDragModifiers(Qt::KeyboardModifiers newModifiers);
 };
 
 
diff --git a/src/Mod/TechDraw/Gui/DlgPrefsTechDrawAdvanced.ui b/src/Mod/TechDraw/Gui/DlgPrefsTechDrawAdvanced.ui
index 2897f27b27..ffa49c628e 100644
--- a/src/Mod/TechDraw/Gui/DlgPrefsTechDrawAdvanced.ui
+++ b/src/Mod/TechDraw/Gui/DlgPrefsTechDrawAdvanced.ui
@@ -6,8 +6,8 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>474</width>
-    <height>424</height>
+    <width>700</width>
+    <height>810</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -443,6 +443,149 @@ can be a performance penalty in complex models.</string>
      </layout>
     </widget>
    </item>
+   <item>
+    <widget class="QGroupBox" name="gbBehaviour">
+     <property name="toolTip">
+      <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Some combinations of OS and Navigation style key bindings may conflict with the default modifier keys for Ballon dragging and View snapping override.  You can make adjustments here to find a non-conflicting key binding.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+     </property>
+     <property name="title">
+      <string>Behaviour Overrides</string>
+     </property>
+     <layout class="QVBoxLayout" name="verticalLayout_3">
+      <item>
+       <layout class="QGridLayout" name="gridLayout_2">
+        <item row="1" column="0">
+         <widget class="QCheckBox" name="cbBalloonDefault">
+          <property name="toolTip">
+           <string>Check this box to use the default modifier keys.  Uncheck this box to set a different key combination.</string>
+          </property>
+          <property name="text">
+           <string>Use Default</string>
+          </property>
+          <property name="checked">
+           <bool>true</bool>
+          </property>
+         </widget>
+        </item>
+        <item row="3" column="1">
+         <widget class="QCheckBox" name="cbSnapShift">
+          <property name="toolTip">
+           <string>Check this box to include the Shift key in the modifiers.</string>
+          </property>
+          <property name="text">
+           <string>Shift</string>
+          </property>
+         </widget>
+        </item>
+        <item row="4" column="0">
+         <widget class="QCheckBox" name="cbSnapDefault">
+          <property name="toolTip">
+           <string>Check this box to use the default modifier keys.  Uncheck this box to set a different key combination.</string>
+          </property>
+          <property name="text">
+           <string>Use Default</string>
+          </property>
+          <property name="checked">
+           <bool>true</bool>
+          </property>
+         </widget>
+        </item>
+        <item row="0" column="1">
+         <widget class="QCheckBox" name="cbBalloonShift">
+          <property name="toolTip">
+           <string>Check this box to include the Shift key in the modifiers.</string>
+          </property>
+          <property name="text">
+           <string>Shift</string>
+          </property>
+         </widget>
+        </item>
+        <item row="4" column="1">
+         <widget class="QCheckBox" name="cbSnapAlt">
+          <property name="toolTip">
+           <string>Check this box to include the Alt key in the modifiers.</string>
+          </property>
+          <property name="text">
+           <string>Alt</string>
+          </property>
+         </widget>
+        </item>
+        <item row="1" column="2">
+         <widget class="QCheckBox" name="cbBalloonMeta">
+          <property name="toolTip">
+           <string>Check this box to include the Meta/Start/Super key in the modifiers.</string>
+          </property>
+          <property name="text">
+           <string>Meta</string>
+          </property>
+         </widget>
+        </item>
+        <item row="0" column="0">
+         <widget class="QLabel" name="label_6">
+          <property name="text">
+           <string>Balloon Drag</string>
+          </property>
+         </widget>
+        </item>
+        <item row="3" column="0">
+         <widget class="QLabel" name="label_7">
+          <property name="text">
+           <string>Snap Override</string>
+          </property>
+         </widget>
+        </item>
+        <item row="3" column="2">
+         <widget class="QCheckBox" name="cbSnapControl">
+          <property name="toolTip">
+           <string>Check this box to include the Control key in the modifiers.</string>
+          </property>
+          <property name="text">
+           <string>Control</string>
+          </property>
+         </widget>
+        </item>
+        <item row="0" column="2">
+         <widget class="QCheckBox" name="cbBalloonControl">
+          <property name="toolTip">
+           <string>Check this box to include the Control key in the modifiers.</string>
+          </property>
+          <property name="text">
+           <string>Control</string>
+          </property>
+         </widget>
+        </item>
+        <item row="4" column="2">
+         <widget class="QCheckBox" name="cbSnapMeta">
+          <property name="toolTip">
+           <string>Check this box to include the Meta/Start/Super key in the modifiers.</string>
+          </property>
+          <property name="text">
+           <string>Meta</string>
+          </property>
+         </widget>
+        </item>
+        <item row="1" column="1">
+         <widget class="QCheckBox" name="cbBalloonAlt">
+          <property name="toolTip">
+           <string>Check this box to include the Alt key in the modifiers.</string>
+          </property>
+          <property name="text">
+           <string>Alt</string>
+          </property>
+         </widget>
+        </item>
+        <item row="2" column="0">
+         <widget class="QLabel" name="label_8">
+          <property name="text">
+           <string/>
+          </property>
+         </widget>
+        </item>
+       </layout>
+      </item>
+     </layout>
+    </widget>
+   </item>
    <item>
     <widget class="QLabel" name="label_17">
      <property name="font">
@@ -469,8 +612,8 @@ can be a performance penalty in complex models.</string>
      </property>
      <property name="sizeHint" stdset="0">
       <size>
-       <width>17</width>
-       <height>1</height>
+       <width>20</width>
+       <height>40</height>
       </size>
      </property>
     </spacer>
diff --git a/src/Mod/TechDraw/Gui/DlgPrefsTechDrawAdvancedImp.cpp b/src/Mod/TechDraw/Gui/DlgPrefsTechDrawAdvancedImp.cpp
index c3d3ea062e..b686b14aca 100644
--- a/src/Mod/TechDraw/Gui/DlgPrefsTechDrawAdvancedImp.cpp
+++ b/src/Mod/TechDraw/Gui/DlgPrefsTechDrawAdvancedImp.cpp
@@ -24,17 +24,21 @@
 
 #include "PreCompiled.h"
 
+#include <Mod/TechDraw/App/Preferences.h>
 #include "DlgPrefsTechDrawAdvancedImp.h"
 #include "ui_DlgPrefsTechDrawAdvanced.h"
 
 
 using namespace TechDrawGui;
+using namespace TechDraw;
 
 DlgPrefsTechDrawAdvancedImp::DlgPrefsTechDrawAdvancedImp( QWidget* parent )
   : PreferencePage( parent )
   , ui(new Ui_DlgPrefsTechDrawAdvancedImp)
 {
     ui->setupUi(this);
+
+    makeBalloonBoxConnections();
 }
 
 DlgPrefsTechDrawAdvancedImp::~DlgPrefsTechDrawAdvancedImp()
@@ -58,8 +62,40 @@ void DlgPrefsTechDrawAdvancedImp::saveSettings()
     ui->cbAutoCorrectRefs->onSave();
     ui->cbNewFaceFinder->onSave();
     ui->sbScrubCount->onSave();
+
+    saveBalloonOverride();
 }
 
+
+void DlgPrefsTechDrawAdvancedImp::saveBalloonOverride()
+{
+    if (ui->cbBalloonDefault->isChecked()) {
+        Preferences::setBalloonDragModifiers(Qt::ControlModifier);
+        return;
+    }
+
+    Qt::KeyboardModifiers result{Qt::NoModifier};
+
+    if (ui->cbBalloonShift->isChecked()) {
+        result |= Qt::ShiftModifier;
+    }
+
+     if (ui->cbBalloonControl->isChecked()) {
+        result |= Qt::ControlModifier;
+     }
+
+     if (ui->cbBalloonAlt->isChecked()) {
+        result |= Qt::AltModifier;
+     }
+
+     if (ui->cbBalloonMeta->isChecked()) {
+         result |= Qt::MetaModifier;
+     }
+
+     Preferences::setBalloonDragModifiers(result);
+}
+
+
 void DlgPrefsTechDrawAdvancedImp::loadSettings()
 {
     ui->cbDetectFaces->onRestore();
@@ -76,18 +112,116 @@ void DlgPrefsTechDrawAdvancedImp::loadSettings()
     ui->cbAutoCorrectRefs->onRestore();
     ui->cbNewFaceFinder->onRestore();
     ui->sbScrubCount->onRestore();
+
+    loadBalloonOverride();
 }
 
+void DlgPrefsTechDrawAdvancedImp::loadBalloonOverride()
+{
+    uint prefOverride = Preferences::balloonDragModifiers();
+    if (prefOverride == Qt::ControlModifier) {
+        // default case
+        ui->cbBalloonDefault->setChecked(true);
+        clearBalloonOptions();
+        enableBalloonOptions(false);
+        return;
+    }
+
+    ui->cbBalloonDefault->setChecked(false);
+    enableBalloonOptions(true);
+
+    if (flagsContainValue(prefOverride, Qt::ShiftModifier)) {
+        ui->cbBalloonShift->setChecked(true);
+    }
+    if (flagsContainValue(prefOverride, Qt::ControlModifier)) {
+        ui->cbBalloonControl->setChecked(true);
+    }
+
+    if (flagsContainValue(prefOverride, Qt::AltModifier)) {
+        ui->cbBalloonAlt->setChecked(true);
+    }
+
+    if (flagsContainValue(prefOverride, Qt::MetaModifier)) {
+        ui->cbBalloonMeta->setChecked(true);
+    }
+}
+
+//! true if bit pattern of value is found in flags.
+bool DlgPrefsTechDrawAdvancedImp::flagsContainValue(uint flags, uint value)
+{
+    uint matchResult = flags & value;
+    if (matchResult == value) {
+        return true;
+    }
+    return false;
+}
+
+
+void DlgPrefsTechDrawAdvancedImp::clearBalloonOptions()
+{
+    ui->cbBalloonShift->setChecked(false);
+    ui->cbBalloonControl->setChecked(false);
+    ui->cbBalloonAlt->setChecked(false);
+    ui->cbBalloonMeta->setChecked(false);
+}
+
+
+void DlgPrefsTechDrawAdvancedImp::enableBalloonOptions(bool newState)
+{
+    ui->cbBalloonShift->setEnabled(newState);
+    ui->cbBalloonControl->setEnabled(newState);
+    ui->cbBalloonAlt->setEnabled(newState);
+    ui->cbBalloonMeta->setEnabled(newState);
+}
+
+
+void DlgPrefsTechDrawAdvancedImp::slotBalloonBoxChecked()
+{
+    if (ui->cbBalloonDefault->isChecked()) {
+        clearBalloonOptions();
+        enableBalloonOptions(false);
+    } else {
+        enableBalloonOptions(true);
+    }
+
+}
+
+
+void DlgPrefsTechDrawAdvancedImp::makeBalloonBoxConnections()
+{
+    connect(ui->cbBalloonDefault,
+            qOverload<int>(&QCheckBox::stateChanged),
+            this,
+            &DlgPrefsTechDrawAdvancedImp::slotBalloonBoxChecked);
+    connect(ui->cbBalloonShift,
+            qOverload<int>(&QCheckBox::stateChanged),
+            this,
+            &DlgPrefsTechDrawAdvancedImp::slotBalloonBoxChecked);
+    connect(ui->cbBalloonControl,
+            qOverload<int>(&QCheckBox::stateChanged),
+            this,
+            &DlgPrefsTechDrawAdvancedImp::slotBalloonBoxChecked);
+    connect(ui->cbBalloonAlt,
+            qOverload<int>(&QCheckBox::stateChanged),
+            this,
+            &DlgPrefsTechDrawAdvancedImp::slotBalloonBoxChecked);
+    connect(ui->cbBalloonMeta,
+            qOverload<int>(&QCheckBox::stateChanged),
+            this,
+            &DlgPrefsTechDrawAdvancedImp::slotBalloonBoxChecked);
+}
+
+
 /**
  * Sets the strings of the subwidgets using the current language.
  */
-void DlgPrefsTechDrawAdvancedImp::changeEvent(QEvent *e)
+void DlgPrefsTechDrawAdvancedImp::changeEvent(QEvent *event)
 {
-    if (e->type() == QEvent::LanguageChange) {
+    if (event->type() == QEvent::LanguageChange) {
         ui->retranslateUi(this);
     }
     else {
-        QWidget::changeEvent(e);
+        QWidget::changeEvent(event);
     }
 }
 
diff --git a/src/Mod/TechDraw/Gui/DlgPrefsTechDrawAdvancedImp.h b/src/Mod/TechDraw/Gui/DlgPrefsTechDrawAdvancedImp.h
index cbdb05b32b..2970e45dd4 100644
--- a/src/Mod/TechDraw/Gui/DlgPrefsTechDrawAdvancedImp.h
+++ b/src/Mod/TechDraw/Gui/DlgPrefsTechDrawAdvancedImp.h
@@ -44,7 +44,19 @@ public:
 protected:
     void saveSettings() override;
     void loadSettings() override;
-    void changeEvent(QEvent *e) override;
+    void changeEvent(QEvent *event) override;
+
+    void loadBalloonOverride();
+    void saveBalloonOverride();
+
+    void clearBalloonOptions();
+
+    static bool flagsContainValue(uint flags, uint value);
+
+    void makeBalloonBoxConnections();
+    void slotBalloonBoxChecked();
+    void enableBalloonOptions(bool newState);
+
 
 private:
     std::unique_ptr<Ui_DlgPrefsTechDrawAdvancedImp> ui;