diff --git a/GUI/View/Instrument/DistributionEditor.cpp b/GUI/View/Instrument/DistributionEditor.cpp
index 5fcceec603d8e5c1ff87a3bb5429327a90537f23..311ef00c81e6d521369b20ac8ba37d1d19e9bfba 100644
--- a/GUI/View/Instrument/DistributionEditor.cpp
+++ b/GUI/View/Instrument/DistributionEditor.cpp
@@ -20,8 +20,6 @@
 #include "GUI/Support/XML/Streamer.h"
 #include "GUI/View/Instrument/DistributionForms.h"
 #include "GUI/View/Instrument/DistributionPlot.h"
-#include "GUI/View/Instrument/EditDistributionDialog.h"
-#include "GUI/View/PropertyEditor/GroupInfoBox.h"
 #include "GUI/View/Tool/GroupBoxCollapser.h"
 #include "GUI/View/Tool/WidgetUtils.h"
 #include <QComboBox>
@@ -115,7 +113,6 @@ DistributionEditor::DistributionEditor(const QString& title,
                                        GUI::ID::Distributions distributions, QWidget* parent,
                                        BeamDistributionItem* item)
     : QGroupBox(title, parent)
-    , m_title(title)
 {
     setProperty("subgroup", true); // for stylesheet addressing
     auto* hLayout = new QHBoxLayout(this);
@@ -144,11 +141,6 @@ void DistributionEditor::updateData()
     m_selector->refresh();
 }
 
-void DistributionEditor::showDialog()
-{
-    showEditDistributionDialog(m_selector, m_title);
-}
-
 void DistributionEditor::updatePlot()
 {
     auto* d = m_selector->item()->distribution();
@@ -156,31 +148,3 @@ void DistributionEditor::updatePlot()
     m_plot->setItem(d);
     m_plot->plotItem();
 }
-
-//--------------------------------------------------------------------------------------------------
-// free functions
-//--------------------------------------------------------------------------------------------------
-
-void showEditDistributionDialog(DistributionSelector* selector, const QString& title)
-{
-    BeamDistributionItem* item = selector->item();
-    if (!item)
-        return;
-
-    const QByteArray backup = GUI::Util::createBackup(item);
-    bool modifiedInDialog = false;
-
-    EditDistributionDialog dialog(item, title, selector->meanConfig(), selector->distributions(),
-                                  selector);
-
-    QObject::connect(&dialog, &EditDistributionDialog::distributionChanged,
-                     [&] { modifiedInDialog = true; });
-    if (dialog.exec() != QDialog::Accepted)
-        GUI::Util::restoreBackup(item, backup);
-    else {
-        if (modifiedInDialog) {
-            selector->refresh();
-            selector->distributionChanged();
-        }
-    }
-}
diff --git a/GUI/View/Instrument/DistributionEditor.h b/GUI/View/Instrument/DistributionEditor.h
index a2928e972090983f9f22591601ae28bad70c4552..1d2e4268078da4870d8f0c9e4085184bf0615108 100644
--- a/GUI/View/Instrument/DistributionEditor.h
+++ b/GUI/View/Instrument/DistributionEditor.h
@@ -91,17 +91,11 @@ public:
 signals:
     void distributionChanged();
 
-private slots:
-    void showDialog();
+private:
     void updatePlot();
 
-private:
-    QString m_title;
     DistributionSelector* m_selector;
     DistributionPlot* m_plot;
 };
 
-/// utility function to show the EditDistributionDialog for a selector
-void showEditDistributionDialog(DistributionSelector* selector, const QString& title);
-
 #endif // BORNAGAIN_GUI_VIEW_INSTRUMENT_DISTRIBUTIONEDITOR_H
diff --git a/GUI/View/Instrument/EditDistributionDialog.cpp b/GUI/View/Instrument/EditDistributionDialog.cpp
deleted file mode 100644
index c4e93a0d8725f8e7be0071092fe1cb77ea8525aa..0000000000000000000000000000000000000000
--- a/GUI/View/Instrument/EditDistributionDialog.cpp
+++ /dev/null
@@ -1,69 +0,0 @@
-//  ************************************************************************************************
-//
-//  BornAgain: simulate and fit reflection and scattering
-//
-//! @file      GUI/View/Instrument/EditDistributionDialog.cpp
-//! @brief     Implements class EditDistributionDialog
-//!
-//! @homepage  http://www.bornagainproject.org
-//! @license   GNU General Public License v3 or higher (see COPYING)
-//! @copyright Forschungszentrum Jülich GmbH 2018
-//! @authors   Scientific Computing Group at MLZ (see CITATION, AUTHORS)
-//
-//  ************************************************************************************************
-
-#include "GUI/View/Instrument/EditDistributionDialog.h"
-#include "GUI/Model/Device/BeamDistributionItem.h"
-#include "GUI/View/Instrument/DistributionEditor.h"
-#include "GUI/View/Instrument/DistributionPlot.h"
-
-#include <QDialogButtonBox>
-#include <QSplitter>
-#include <QVBoxLayout>
-
-EditDistributionDialog::EditDistributionDialog(BeamDistributionItem* item, const QString& title,
-                                               const std::optional<MeanConfig>& mean_config,
-                                               GUI::ID::Distributions distributions,
-                                               QWidget* parent, Qt::WindowFlags f)
-    : QDialog(parent, f)
-    , m_item(item)
-{
-    setMinimumSize(256, 256);
-    resize(800, 480);
-    setWindowTitle(title);
-
-    auto* layout = new QVBoxLayout(this);
-
-    auto* splitter = new QSplitter(this);
-    layout->addWidget(splitter);
-
-    m_plot = new DistributionPlot(this);
-    m_plot->setItem(m_item->distribution());
-    splitter->addWidget(m_plot);
-
-    m_selector = new DistributionSelector(mean_config, distributions, this, m_item);
-    splitter->addWidget(m_selector);
-
-    splitter->setSizes({500, 300});
-
-    auto* bbox = new QDialogButtonBox(this);
-    bbox->addButton(QDialogButtonBox::Ok);
-    bbox->addButton(QDialogButtonBox::Cancel);
-    connect(bbox, &QDialogButtonBox::accepted, this, &QDialog::accept);
-    connect(bbox, &QDialogButtonBox::rejected, this, &QDialog::close);
-    layout->addWidget(bbox);
-
-    setSizeGripEnabled(true);
-
-    connect(m_selector, &DistributionSelector::distributionChanged, this,
-            &EditDistributionDialog::updatePlot);
-    connect(m_selector, &DistributionSelector::distributionChanged, this,
-            &EditDistributionDialog::distributionChanged);
-}
-
-void EditDistributionDialog::updatePlot()
-{
-    // no need to update the selector because that's the only widget which changes the item
-    m_plot->setItem(m_item->distribution());
-    m_plot->plotItem();
-}
diff --git a/GUI/View/Instrument/EditDistributionDialog.h b/GUI/View/Instrument/EditDistributionDialog.h
deleted file mode 100644
index 02536694c8ea7408959065cea1fc55f0d6a651de..0000000000000000000000000000000000000000
--- a/GUI/View/Instrument/EditDistributionDialog.h
+++ /dev/null
@@ -1,49 +0,0 @@
-//  ************************************************************************************************
-//
-//  BornAgain: simulate and fit reflection and scattering
-//
-//! @file      GUI/View/Instrument/EditDistributionDialog.h
-//! @brief     Defines class EditDistributionDialog
-//!
-//! @homepage  http://www.bornagainproject.org
-//! @license   GNU General Public License v3 or higher (see COPYING)
-//! @copyright Forschungszentrum Jülich GmbH 2018
-//! @authors   Scientific Computing Group at MLZ (see CITATION, AUTHORS)
-//
-//  ************************************************************************************************
-
-#ifndef BORNAGAIN_GUI_VIEW_INSTRUMENT_EDITDISTRIBUTIONDIALOG_H
-#define BORNAGAIN_GUI_VIEW_INSTRUMENT_EDITDISTRIBUTIONDIALOG_H
-
-#include "GUI/View/Tool/ID.h"
-#include <QDialog>
-#include <optional>
-
-class DistributionPlot;
-class DistributionSelector;
-class BeamDistributionItem;
-struct MeanConfig;
-
-//! The dialog which shows an editor to change parameters of DistributionItem
-class EditDistributionDialog : public QDialog {
-    Q_OBJECT
-
-public:
-    EditDistributionDialog(BeamDistributionItem* item, const QString& title,
-                           const std::optional<MeanConfig>& mean_config,
-                           GUI::ID::Distributions distributions, QWidget* parent = nullptr,
-                           Qt::WindowFlags f = Qt::WindowFlags());
-
-signals:
-    void distributionChanged();
-
-private slots:
-    void updatePlot();
-
-private:
-    DistributionPlot* m_plot;
-    DistributionSelector* m_selector;
-    BeamDistributionItem* m_item;
-};
-
-#endif // BORNAGAIN_GUI_VIEW_INSTRUMENT_EDITDISTRIBUTIONDIALOG_H
diff --git a/GUI/View/PropertyEditor/GroupInfoBox.cpp b/GUI/View/PropertyEditor/GroupInfoBox.cpp
deleted file mode 100644
index 4713b4df7d29a72462d2a567371adfb247e89f77..0000000000000000000000000000000000000000
--- a/GUI/View/PropertyEditor/GroupInfoBox.cpp
+++ /dev/null
@@ -1,102 +0,0 @@
-//  ************************************************************************************************
-//
-//  BornAgain: simulate and fit reflection and scattering
-//
-//! @file      GUI/View/PropertyEditor/GroupInfoBox.cpp
-//! @brief     Implements class GroupInfoBox
-//!
-//! @homepage  http://www.bornagainproject.org
-//! @license   GNU General Public License v3 or higher (see COPYING)
-//! @copyright Forschungszentrum Jülich GmbH 2018
-//! @authors   Scientific Computing Group at MLZ (see CITATION, AUTHORS)
-//
-//  ************************************************************************************************
-
-#include "GUI/View/PropertyEditor/GroupInfoBox.h"
-#include <QApplication>
-#include <QMouseEvent>
-#include <QPainter>
-#include <QPixmap>
-#include <QPushButton>
-#include <QStyleOptionGroupBox>
-#include <QStylePainter>
-#include <QToolTip>
-#include <iostream>
-
-namespace {
-
-int imageWidth = 16;
-int imageheigth = 16;
-int offset_of_tooltip_position = 20;
-int offset_of_icon_position = 24;
-
-} // namespace
-
-GroupInfoBox::GroupInfoBox(QWidget* parent)
-    : QGroupBox(parent)
-    , m_xImage(0)
-    , m_yImage(0)
-{
-    init_box();
-}
-
-GroupInfoBox::GroupInfoBox(const QString& title, QWidget* parent)
-    : QGroupBox(title, parent)
-    , m_title(title)
-{
-    init_box();
-}
-
-void GroupInfoBox::setButtonToolTip(const QString& text)
-{
-    m_toolTipText = text;
-}
-
-void GroupInfoBox::mousePressEvent(QMouseEvent* e)
-{
-    if (e->button() == Qt::LeftButton) {
-        QStyleOptionGroupBox option;
-        initStyleOption(&option);
-        QRect buttonArea(m_xImage, m_yImage, imageWidth, imageheigth);
-        if (buttonArea.contains(e->pos()))
-            emit clicked(true);
-    }
-}
-
-void GroupInfoBox::mouseMoveEvent(QMouseEvent* event)
-{
-    QRect buttonArea(m_xImage, m_yImage, imageWidth, imageheigth);
-
-    if (buttonArea.contains(event->pos())) {
-        QToolTip::showText(
-            this->mapToGlobal(QPoint(m_xImage + offset_of_tooltip_position, m_yImage)),
-            m_toolTipText);
-    }
-}
-
-void GroupInfoBox::init_box()
-{
-    setMouseTracking(true);
-    m_toolTipText = "Gives access to the extended distribution viewer.";
-}
-
-void GroupInfoBox::paintEvent(QPaintEvent*)
-{
-    QStylePainter paint(this);
-    QStyleOptionGroupBox option;
-    initStyleOption(&option);
-    paint.drawComplexControl(QStyle::CC_GroupBox, option);
-
-    m_xImage = this->geometry().topRight().x() - offset_of_icon_position;
-    m_yImage = 0;
-
-    // draw groupbox
-#ifdef Q_OS_LINUX
-    const int shift = 3;
-#else
-    const int shift = 1;
-#endif
-
-    paint.drawItemPixmap(option.rect.adjusted(0, shift, 0, 0), Qt::AlignTop | Qt::AlignRight,
-                         QPixmap(":/images/magnifier.png"));
-}
diff --git a/GUI/View/PropertyEditor/GroupInfoBox.h b/GUI/View/PropertyEditor/GroupInfoBox.h
deleted file mode 100644
index a3710f2da311e631adf7a19db0799ba556ddb3e8..0000000000000000000000000000000000000000
--- a/GUI/View/PropertyEditor/GroupInfoBox.h
+++ /dev/null
@@ -1,44 +0,0 @@
-//  ************************************************************************************************
-//
-//  BornAgain: simulate and fit reflection and scattering
-//
-//! @file      GUI/View/PropertyEditor/GroupInfoBox.h
-//! @brief     Defines class GroupInfoBox
-//!
-//! @homepage  http://www.bornagainproject.org
-//! @license   GNU General Public License v3 or higher (see COPYING)
-//! @copyright Forschungszentrum Jülich GmbH 2018
-//! @authors   Scientific Computing Group at MLZ (see CITATION, AUTHORS)
-//
-//  ************************************************************************************************
-
-#ifndef BORNAGAIN_GUI_VIEW_PROPERTYEDITOR_GROUPINFOBOX_H
-#define BORNAGAIN_GUI_VIEW_PROPERTYEDITOR_GROUPINFOBOX_H
-
-#include <QGroupBox>
-
-//! The class which extends QGroupBox with clickable icon next to the label
-class GroupInfoBox : public QGroupBox {
-    Q_OBJECT
-
-public:
-    GroupInfoBox(QWidget* parent = nullptr);
-    GroupInfoBox(const QString& title, QWidget* parent = nullptr);
-
-    void setButtonToolTip(const QString& text);
-
-protected:
-    void mousePressEvent(QMouseEvent* e) override;
-    void paintEvent(QPaintEvent*) override;
-    void mouseMoveEvent(QMouseEvent* event) override;
-
-private:
-    void init_box();
-
-    QString m_title;
-    QString m_toolTipText;
-    int m_xImage;
-    int m_yImage;
-};
-
-#endif // BORNAGAIN_GUI_VIEW_PROPERTYEDITOR_GROUPINFOBOX_H