diff --git a/src/Mod/Mesh/Gui/DlgSettingsImportExport.ui b/src/Mod/Mesh/Gui/DlgSettingsImportExport.ui
index 0dd5ab6e1b..9a0b08c7d0 100644
--- a/src/Mod/Mesh/Gui/DlgSettingsImportExport.ui
+++ b/src/Mod/Mesh/Gui/DlgSettingsImportExport.ui
@@ -24,6 +24,9 @@
        <layout class="QGridLayout">
         <item row="0" column="1">
          <widget class="Gui::QuantitySpinBox" name="maxDeviationExport">
+          <property name="toolTip">
+           <string>Maximal deviation between mesh and object</string>
+          </property>
           <property name="unit" stdset="0">
            <string notr="true">mm</string>
           </property>
@@ -44,7 +47,7 @@
         <item row="0" column="0">
          <widget class="QLabel" name="textLabel1">
           <property name="toolTip">
-           <string>Defines the deviation of tessellation to the actual surface</string>
+           <string>Deviation of tessellation to the actual surface</string>
           </property>
           <property name="whatsThis">
            <string>&lt;html&gt;&lt;head&gt;&lt;meta name=&quot;qrichtext&quot; content=&quot;1&quot; /&gt;&lt;/head&gt;&lt;body style=&quot; white-space: pre-wrap; font-family:MS Shell Dlg 2; font-size:7.8pt; font-weight:400; font-style:normal; text-decoration:none;&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;&lt;span style=&quot; font-weight:600;&quot;&gt;Tessellation&lt;/span&gt;&lt;/p&gt;&lt;p style=&quot;-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; font-weight:600;&quot;&gt;&lt;/p&gt;&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; font-weight:600;&quot;&gt;&lt;span style=&quot; font-weight:400;&quot;&gt;Defines the maximum deviation of the tessellated mesh to the surface. The smaller the value is the slower the render speed which results in increased detail/resolution.&lt;/span&gt;&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
@@ -56,6 +59,9 @@
         </item>
         <item row="1" column="0">
          <widget class="Gui::PrefCheckBox" name="exportAmfCompressed">
+          <property name="toolTip">
+           <string>ZIP compression is used when writing a mesh file in AMF format</string>
+          </property>
           <property name="text">
            <string>Export AMF files using compression</string>
           </property>
diff --git a/src/Mod/MeshPart/Gui/Tessellation.ui b/src/Mod/MeshPart/Gui/Tessellation.ui
index 5ddee89512..64dd30c95c 100644
--- a/src/Mod/MeshPart/Gui/Tessellation.ui
+++ b/src/Mod/MeshPart/Gui/Tessellation.ui
@@ -16,6 +16,9 @@
   <layout class="QGridLayout" name="gridLayout_7">
    <item row="0" column="0">
     <widget class="QTreeWidget" name="treeWidget">
+     <property name="toolTip">
+      <string>Select a shape to be meshed</string>
+     </property>
      <property name="selectionMode">
       <enum>QAbstractItemView::ExtendedSelection</enum>
      </property>
@@ -34,6 +37,9 @@
      <layout class="QGridLayout" name="gridLayout_6">
       <item row="0" column="0">
        <widget class="QRadioButton" name="radioButtonStandard">
+        <property name="toolTip">
+         <string>Use the standard mesher</string>
+        </property>
         <property name="text">
          <string>Standard</string>
         </property>
@@ -41,6 +47,9 @@
       </item>
       <item row="0" column="1">
        <widget class="QRadioButton" name="radioButtonMefisto">
+        <property name="toolTip">
+         <string>Use the Mefisto mesher</string>
+        </property>
         <property name="text">
          <string>Mefisto</string>
         </property>
@@ -48,6 +57,9 @@
       </item>
       <item row="0" column="2">
        <widget class="QRadioButton" name="radioButtonNetgen">
+        <property name="toolTip">
+         <string>Use the Netgen mesher</string>
+        </property>
         <property name="text">
          <string>Netgen</string>
         </property>
@@ -71,6 +83,9 @@
             </item>
             <item row="0" column="1">
              <widget class="Gui::QuantitySpinBox" name="spinSurfaceDeviation">
+              <property name="toolTip">
+               <string>Maximal linear deflection of a mesh section from the surface of the object</string>
+              </property>
               <property name="unit" stdset="0">
                <string notr="true">mm</string>
               </property>
@@ -94,6 +109,9 @@
             </item>
             <item row="1" column="1">
              <widget class="Gui::QuantitySpinBox" name="spinAngularDeviation">
+              <property name="toolTip">
+               <string>Maximal angular deflection of a mesh section to the next section</string>
+              </property>
               <property name="unit" stdset="0">
                <string notr="true">deg</string>
               </property>
@@ -115,6 +133,10 @@
           </item>
           <item row="1" column="0">
            <widget class="QCheckBox" name="relativeDeviation">
+            <property name="toolTip">
+             <string>The maximal linear deviation of a mesh segment will be the specified
+Surface deviation multiplied by the length of the current mesh segment (edge)</string>
+            </property>
             <property name="text">
              <string>Relative surface deviation</string>
             </property>
@@ -122,6 +144,9 @@
           </item>
           <item row="2" column="0">
            <widget class="QCheckBox" name="meshShapeColors">
+            <property name="toolTip">
+             <string>Mesh will get face colors of the object</string>
+            </property>
             <property name="text">
              <string>Apply face colors to mesh</string>
             </property>
@@ -129,6 +154,11 @@
           </item>
           <item row="3" column="0">
            <widget class="QCheckBox" name="groupsFaceColors">
+            <property name="toolTip">
+             <string>Mesh segments will be grouped according to the color of the object faces.
+These groups will be exported for mesh output formats supporting
+this feature (e.g. the format OBJ).</string>
+            </property>
             <property name="text">
              <string>Define segments by face colors</string>
             </property>
@@ -150,6 +180,10 @@
          </layout>
         </widget>
         <widget class="QWidget" name="pageMefisto">
+         <property name="toolTip">
+          <string>If this number is smaller the mesh becomes finer.
+The smallest value is 0.</string>
+         </property>
          <layout class="QGridLayout" name="gridLayout_9">
           <item row="0" column="0">
            <layout class="QHBoxLayout" name="horizontalLayout_2">
@@ -261,6 +295,10 @@
                 <property name="enabled">
                  <bool>false</bool>
                 </property>
+                <property name="toolTip">
+                 <string>If this parameter is smaller, the mesh becomes finer.
+A value in the range of 0.1-1.</string>
+                </property>
                 <property name="decimals">
                  <number>1</number>
                 </property>
@@ -290,6 +328,10 @@
                 <property name="enabled">
                  <bool>false</bool>
                 </property>
+                <property name="toolTip">
+                 <string>If this parameter is larger, the mesh becomes finer.
+A value in the range of 0.2-10.</string>
+                </property>
                 <property name="decimals">
                  <number>1</number>
                 </property>
@@ -319,6 +361,10 @@
                 <property name="enabled">
                  <bool>false</bool>
                 </property>
+                <property name="toolTip">
+                 <string>If this parameter is larger, the mesh becomes finer.
+A value in the range of 0.2-10.</string>
+                </property>
                 <property name="decimals">
                  <number>1</number>
                 </property>
@@ -340,6 +386,9 @@
             </item>
             <item row="2" column="0" colspan="2">
              <widget class="QCheckBox" name="checkOptimizeSurface">
+              <property name="toolTip">
+               <string>Whether optimization of surface shape will be done</string>
+              </property>
               <property name="text">
                <string>Optimize surface</string>
               </property>
@@ -350,6 +399,9 @@
             </item>
             <item row="3" column="0" colspan="2">
              <widget class="QCheckBox" name="checkSecondOrder">
+              <property name="toolTip">
+               <string>Whether second order elements will be generated</string>
+              </property>
               <property name="text">
                <string>Second order elements</string>
               </property>
@@ -357,6 +409,9 @@
             </item>
             <item row="4" column="0" colspan="2">
              <widget class="QCheckBox" name="checkQuadDominated">
+              <property name="toolTip">
+               <string>Whether meshes will be arranged preferably using quadrilateral faces</string>
+              </property>
               <property name="text">
                <string>Quad dominated</string>
               </property>