diff --git a/src/SeerArrayVisualizerWidget.cpp b/src/SeerArrayVisualizerWidget.cpp
index e9fd249..0506272 100644
--- a/src/SeerArrayVisualizerWidget.cpp
+++ b/src/SeerArrayVisualizerWidget.cpp
@@ -20,11 +20,15 @@
 SeerArrayVisualizerWidget::SeerArrayVisualizerWidget (QWidget* parent) : QWidget(parent) {
 
     // Init variables.
-    _aVariableId = Seer::createID(); // Create two id's for queries.
+    _aVariableId = Seer::createID(); // Create id's for A queries.
     _aMemoryId   = Seer::createID();
+    _aOffsetId   = Seer::createID();
+    _aStrideId   = Seer::createID();
 
-    _bVariableId = Seer::createID(); // Create two id's for queries.
+    _bVariableId = Seer::createID(); // Create id's for B queries.
     _bMemoryId   = Seer::createID();
+    _bOffsetId   = Seer::createID();
+    _bStrideId   = Seer::createID();
 
     _aSeries     = 0;
     _bSeries     = 0;
@@ -73,14 +77,16 @@ SeerArrayVisualizerWidget::SeerArrayVisualizerWidget (QWidget* parent) : QWidget
     QObject::connect(aRefreshToolButton,            &QToolButton::clicked,                                     this,            &SeerArrayVisualizerWidget::handleaRefreshButton);
     QObject::connect(bRefreshToolButton,            &QToolButton::clicked,                                     this,            &SeerArrayVisualizerWidget::handlebRefreshButton);
     QObject::connect(helpToolButton,                &QToolButton::clicked,                                     this,            &SeerArrayVisualizerWidget::handleHelpButton);
-    QObject::connect(aArrayLengthLineEdit,          &QLineEdit::returnPressed,                                 this,            &SeerArrayVisualizerWidget::handleaRefreshButton);
-    QObject::connect(bArrayLengthLineEdit,          &QLineEdit::returnPressed,                                 this,            &SeerArrayVisualizerWidget::handlebRefreshButton);
-    QObject::connect(aArrayOffsetLineEdit,          &QLineEdit::returnPressed,                                 this,            &SeerArrayVisualizerWidget::handleaRefreshButton);
-    QObject::connect(bArrayOffsetLineEdit,          &QLineEdit::returnPressed,                                 this,            &SeerArrayVisualizerWidget::handlebRefreshButton);
-    QObject::connect(aArrayStrideLineEdit,          &QLineEdit::returnPressed,                                 this,            &SeerArrayVisualizerWidget::handleaRefreshButton);
-    QObject::connect(bArrayStrideLineEdit,          &QLineEdit::returnPressed,                                 this,            &SeerArrayVisualizerWidget::handlebRefreshButton);
-    QObject::connect(aVariableNameLineEdit,         &QLineEdit::returnPressed,                                 this,            &SeerArrayVisualizerWidget::handleaVariableNameLineEdit);
-    QObject::connect(bVariableNameLineEdit,         &QLineEdit::returnPressed,                                 this,            &SeerArrayVisualizerWidget::handlebVariableNameLineEdit);
+    QObject::connect(aVariableNameLineEdit,         &SeerHistoryLineEdit::returnPressed,                       this,            &SeerArrayVisualizerWidget::handleaVariableNameLineEdit);
+    QObject::connect(aVariableNameLineEdit,         &SeerHistoryLineEdit::editingFinished,                     this,            &SeerArrayVisualizerWidget::handleaVariableNameLineEdit);
+    QObject::connect(bVariableNameLineEdit,         &SeerHistoryLineEdit::returnPressed,                       this,            &SeerArrayVisualizerWidget::handlebVariableNameLineEdit);
+    QObject::connect(bVariableNameLineEdit,         &SeerHistoryLineEdit::editingFinished,                     this,            &SeerArrayVisualizerWidget::handlebVariableNameLineEdit);
+    QObject::connect(aArrayLengthLineEdit,          &SeerHistoryLineEdit::returnPressed,                       this,            &SeerArrayVisualizerWidget::handleaRefreshButton);
+    QObject::connect(bArrayLengthLineEdit,          &SeerHistoryLineEdit::returnPressed,                       this,            &SeerArrayVisualizerWidget::handlebRefreshButton);
+    QObject::connect(aArrayOffsetLineEdit,          &SeerHistoryLineEdit::returnPressed,                       this,            &SeerArrayVisualizerWidget::handleaRefreshButton);
+    QObject::connect(bArrayOffsetLineEdit,          &SeerHistoryLineEdit::returnPressed,                       this,            &SeerArrayVisualizerWidget::handlebRefreshButton);
+    QObject::connect(aArrayStrideLineEdit,          &SeerHistoryLineEdit::returnPressed,                       this,            &SeerArrayVisualizerWidget::handleaRefreshButton);
+    QObject::connect(bArrayStrideLineEdit,          &SeerHistoryLineEdit::returnPressed,                       this,            &SeerArrayVisualizerWidget::handlebRefreshButton);
     QObject::connect(aArrayDisplayFormatComboBox,   QOverload<int>::of(&QComboBox::currentIndexChanged),       this,            &SeerArrayVisualizerWidget::handleaArrayDisplayFormatComboBox);
     QObject::connect(bArrayDisplayFormatComboBox,   QOverload<int>::of(&QComboBox::currentIndexChanged),       this,            &SeerArrayVisualizerWidget::handlebArrayDisplayFormatComboBox);
     QObject::connect(aAxisComboBox,                 QOverload<int>::of(&QComboBox::currentIndexChanged),       this,            &SeerArrayVisualizerWidget::handleaAxisComboBox);
@@ -554,6 +560,25 @@ void SeerArrayVisualizerWidget::handlebVariableNameLineEdit () {
     setBVariableName (bVariableNameLineEdit->text());
 }
 
+void SeerArrayVisualizerWidget::handleaElementLengthLineEdit () {
+}
+
+void SeerArrayVisualizerWidget::handlebElementLengthLineEdit () {
+}
+
+void SeerArrayVisualizerWidget::handleaElementOffsetLineEdit () {
+}
+
+void SeerArrayVisualizerWidget::handlebElementOffsetLineEdit () {
+}
+
+void SeerArrayVisualizerWidget::handleaElementStrideLineEdit () {
+}
+
+void SeerArrayVisualizerWidget::handlebElementStrideLineEdit () {
+}
+
+
 void SeerArrayVisualizerWidget::handleaArrayDisplayFormatComboBox (int index) {
 
     //qDebug() << index;
diff --git a/src/SeerArrayVisualizerWidget.h b/src/SeerArrayVisualizerWidget.h
index 7df4079..768ac51 100644
--- a/src/SeerArrayVisualizerWidget.h
+++ b/src/SeerArrayVisualizerWidget.h
@@ -35,6 +35,12 @@ class SeerArrayVisualizerWidget : public QWidget, protected Ui::SeerArrayVisuali
         void                handleHelpButton                    ();
         void                handleaVariableNameLineEdit         ();
         void                handlebVariableNameLineEdit         ();
+        void                handleaElementLengthLineEdit        ();
+        void                handlebElementLengthLineEdit        ();
+        void                handleaElementOffsetLineEdit        ();
+        void                handlebElementOffsetLineEdit        ();
+        void                handleaElementStrideLineEdit        ();
+        void                handlebElementStrideLineEdit        ();
         void                handleaArrayDisplayFormatComboBox   (int index);
         void                handlebArrayDisplayFormatComboBox   (int index);
         void                handleaAxisComboBox                 (int index);
@@ -62,5 +68,9 @@ class SeerArrayVisualizerWidget : public QWidget, protected Ui::SeerArrayVisuali
         int                 _bVariableId;
         int                 _aMemoryId;
         int                 _bMemoryId;
+        int                 _aOffsetId;
+        int                 _bOffsetId;
+        int                 _aStrideId;
+        int                 _bStrideId;
 };
 
diff --git a/src/SeerArrayVisualizerWidget.ui b/src/SeerArrayVisualizerWidget.ui
index 17ebb66..4787f1d 100644
--- a/src/SeerArrayVisualizerWidget.ui
+++ b/src/SeerArrayVisualizerWidget.ui
@@ -17,7 +17,7 @@
    <item row="0" column="0">
     <layout class="QGridLayout" name="gridLayout">
      <item row="0" column="5">
-      <widget class="QHistoryLineEdit" name="aArrayStrideLineEdit">
+      <widget class="SeerHistoryLineEdit" name="aArrayStrideLineEdit">
        <property name="toolTip">
         <string>Element stride between values. (default=1)</string>
        </property>
@@ -80,7 +80,7 @@
       </widget>
      </item>
      <item row="1" column="5">
-      <widget class="QHistoryLineEdit" name="bArrayStrideLineEdit">
+      <widget class="SeerHistoryLineEdit" name="bArrayStrideLineEdit">
        <property name="toolTip">
         <string>Element stride between values. (default=1)</string>
        </property>
@@ -96,7 +96,7 @@
       </widget>
      </item>
      <item row="1" column="3">
-      <widget class="QHistoryLineEdit" name="bArrayLengthLineEdit">
+      <widget class="SeerHistoryLineEdit" name="bArrayLengthLineEdit">
        <property name="toolTip">
         <string>Total number of elements in array.</string>
        </property>
@@ -112,7 +112,7 @@
       </widget>
      </item>
      <item row="1" column="1">
-      <widget class="QHistoryLineEdit" name="bVariableNameLineEdit">
+      <widget class="SeerHistoryLineEdit" name="bVariableNameLineEdit">
        <property name="toolTip">
         <string>Variable name or expression.</string>
        </property>
@@ -139,7 +139,7 @@
       </widget>
      </item>
      <item row="0" column="4">
-      <widget class="QHistoryLineEdit" name="aArrayOffsetLineEdit">
+      <widget class="SeerHistoryLineEdit" name="aArrayOffsetLineEdit">
        <property name="toolTip">
         <string>Element offset into array. (default=0)</string>
        </property>
@@ -158,7 +158,7 @@
       </widget>
      </item>
      <item row="0" column="3">
-      <widget class="QHistoryLineEdit" name="aArrayLengthLineEdit">
+      <widget class="SeerHistoryLineEdit" name="aArrayLengthLineEdit">
        <property name="toolTip">
         <string>Total number of elements in array.</string>
        </property>
@@ -221,7 +221,7 @@
       </widget>
      </item>
      <item row="0" column="2">
-      <widget class="QHistoryLineEdit" name="aVariableAddressLineEdit">
+      <widget class="QLineEdit" name="aVariableAddressLineEdit">
        <property name="toolTip">
         <string>Variable address.</string>
        </property>
@@ -237,7 +237,7 @@
       </widget>
      </item>
      <item row="1" column="4">
-      <widget class="QHistoryLineEdit" name="bArrayOffsetLineEdit">
+      <widget class="SeerHistoryLineEdit" name="bArrayOffsetLineEdit">
        <property name="toolTip">
         <string>Element offset into array. (default=0)</string>
        </property>
@@ -256,7 +256,7 @@
       </widget>
      </item>
      <item row="1" column="2">
-      <widget class="QHistoryLineEdit" name="bVariableAddressLineEdit">
+      <widget class="QLineEdit" name="bVariableAddressLineEdit">
        <property name="toolTip">
         <string>Variable address.</string>
        </property>
@@ -286,7 +286,7 @@
       </widget>
      </item>
      <item row="0" column="1">
-      <widget class="QHistoryLineEdit" name="aVariableNameLineEdit">
+      <widget class="SeerHistoryLineEdit" name="aVariableNameLineEdit">
        <property name="toolTip">
         <string>Variable name or expression.</string>
        </property>
@@ -377,7 +377,7 @@
        <item>
         <layout class="QHBoxLayout" name="horizontalLayout">
          <item>
-          <widget class="QHistoryLineEdit" name="titleLineEdit">
+          <widget class="SeerHistoryLineEdit" name="titleLineEdit">
            <property name="sizePolicy">
             <sizepolicy hsizetype="Expanding" vsizetype="Fixed">
              <horstretch>0</horstretch>
@@ -514,9 +514,9 @@
    <header location="global">QZoomChartView.h</header>
   </customwidget>
   <customwidget>
-   <class>QHistoryLineEdit</class>
+   <class>SeerHistoryLineEdit</class>
    <extends>QLineEdit</extends>
-   <header location="global">QHistoryLineEdit.h</header>
+   <header location="global">SeerHistoryLineEdit.h</header>
   </customwidget>
  </customwidgets>
  <tabstops>
diff --git a/tests/helloarray/helloarray.cpp b/tests/helloarray/helloarray.cpp
index 13157f3..d16f717 100644
--- a/tests/helloarray/helloarray.cpp
+++ b/tests/helloarray/helloarray.cpp
@@ -57,11 +57,13 @@ int main (void) {
     float  phaseIncrement = two_pi/table_size;
     float  currentPhase   = 0.0;
 
-    float* sine_array = (float*)malloc(table_size*sizeof(float));
+    float* sin_array = (float*)malloc(table_size*sizeof(float));
+    float* cos_array = (float*)malloc(table_size*sizeof(float));
 
     for (int i = 0; i < 512; i ++){
 
-        sine_array[i] = sin(currentPhase);
+        sin_array[i] = sin(currentPhase);
+        cos_array[i] = cos(currentPhase);
 
         currentPhase += phaseIncrement;
     }
@@ -79,7 +81,8 @@ int main (void) {
     free(array);
     free(int_array);
     free(float_array);
-    free(sine_array);
+    free(sin_array);
+    free(cos_array);
     free(x);
 
     return 0;