diff --git a/GUI/View/Instrument/DetectorEditor.cpp b/GUI/View/Instrument/DetectorEditor.cpp
index d64a7438313350bf2d70a79de9dccd35be23546f..add270d7b9724e25ba051e1b1e1177981c32dec6 100644
--- a/GUI/View/Instrument/DetectorEditor.cpp
+++ b/GUI/View/Instrument/DetectorEditor.cpp
@@ -26,16 +26,23 @@
 #include "GUI/Support/Style/ApplicationSettings.h"
 #include <QLabel>
 
-void installGroup(QGroupBox* groupBox)
+class GroupBox : public QGroupBox
 {
-    auto* label = new QLabel(groupBox);
+public:
+    GroupBox(const QString& title, QLayout* content_layout, QWidget* parent);
+};
+
+GroupBox::GroupBox(const QString& title, QLayout* content_layout, QWidget* parent)
+    : QGroupBox(parent)
+{
+    auto* label = new QLabel(this);
     label->setObjectName("GroupBoxToggler");
-    label->setText(groupBox->title());
+    label->setText(title);
     label->setSizePolicy(QSizePolicy::Minimum, QSizePolicy::MinimumExpanding);
 
-    auto* contentArea = new QWidget(groupBox);
+    auto* contentArea = new QWidget(this);
     contentArea->setObjectName("ContentArea");
-    contentArea->setLayout(groupBox->layout());
+    contentArea->setLayout(content_layout);
 
     auto* mainLayout = new QVBoxLayout;
     mainLayout->setSpacing(0);
@@ -43,10 +50,11 @@ void installGroup(QGroupBox* groupBox)
     mainLayout->setMenuBar(label);
     mainLayout->addWidget(contentArea);
 
-    groupBox->setTitle(""); // title has been read above
-    groupBox->setLayout(mainLayout); // overwrites layout that has been read above
+    setTitle(""); // title has been read above
+    setLayout(mainLayout); // overwrites layout that has been read above
 }
 
+
 DetectorEditor::DetectorEditor(QWidget* parent, GISASInstrumentItem* instrItem)
     : QGroupBox("Detector parameters", parent)
 {
@@ -68,8 +76,8 @@ DetectorEditor::DetectorEditor(QWidget* parent, GISASInstrumentItem* instrItem)
     grid->setColumnStretch(2, 1);
 
     // -- x-axis controls
-    auto* xAxisGroupBox = new QGroupBox("X axis", this);
-    auto* xAxisFormLayout = new QFormLayout(xAxisGroupBox);
+    auto* xAxisFormLayout = new QFormLayout;
+    auto* xAxisGroupBox = new GroupBox("X axis", xAxisFormLayout, this);
 
     auto* xAxisNbinsSpinBox = new SafeSpinBox;
     xAxisNbinsSpinBox->setRange(1, 65536);
@@ -91,7 +99,6 @@ DetectorEditor::DetectorEditor(QWidget* parent, GISASInstrumentItem* instrItem)
                 emit dataChanged();
             });
     grid->addWidget(xAxisGroupBox, 1, 0);
-    installGroup(xAxisGroupBox);
 
 
     // -- y-axis controls