diff --git a/src/blackgui/components/copyconfigurationcomponent.cpp b/src/blackgui/components/copyconfigurationcomponent.cpp
index de787c995..f72dd8f51 100644
--- a/src/blackgui/components/copyconfigurationcomponent.cpp
+++ b/src/blackgui/components/copyconfigurationcomponent.cpp
@@ -8,7 +8,18 @@
  */
 
 #include "copyconfigurationcomponent.h"
+#include "blackconfig/buildconfig.h"
+#include "blackmisc/directoryutils.h"
 #include "ui_copyconfigurationcomponent.h"
+#include "blackmisc/settingscache.h"
+#include "blackmisc/datacache.h"
+
+#include <QDirIterator>
+#include <QFileInfoList>
+#include <QFileSystemModel>
+
+using namespace BlackMisc;
+using namespace BlackConfig;
 
 namespace BlackGui
 {
@@ -19,9 +30,156 @@ namespace BlackGui
             ui(new Ui::CCopyConfigurationComponent)
         {
             ui->setupUi(this);
+            ui->cb_OtherVersions->clear();
+            ui->cb_OtherVersions->addItems(CDirectoryUtils::swiftApplicationDataDirectoryList(true, true));
+            m_versionDirs = CDirectoryUtils::swiftApplicationDataDirectoryList(true, false); // not beautified
+
+            this->initCurrentDirectories();
+            this->preselectMissingOurOutdated();
+
+            connect(ui->rb_Cache, &QRadioButton::toggled, this, &CCopyConfigurationComponent::initCurrentDirectories);
+            connect(ui->cb_OtherVersions, &QComboBox::currentTextChanged, this, &CCopyConfigurationComponent::initCurrentDirectories);
         }
 
         CCopyConfigurationComponent::~CCopyConfigurationComponent()
         { }
+
+        void CCopyConfigurationComponent::setCacheMode()
+        {
+            ui->rb_Cache->setChecked(true);
+        }
+
+        void CCopyConfigurationComponent::setSettingsMode()
+        {
+            ui->rb_Settings->setChecked(true);
+        }
+
+        void CCopyConfigurationComponent::copySelectedFiles()
+        {
+            const QStringList files = this->getSelectedFiles();
+            if (files.isEmpty()) { return; }
+        }
+
+        void CCopyConfigurationComponent::preselectMissingOurOutdated()
+        {
+            const QString dirOther = this->getOtherVersionsSelectedDirectory();
+            const QString dirCurrent = this->getThisVersionDirectory();
+
+            ui->tv_Destination->clearSelection();
+            const CDirectoryUtils::DirComparison comp = CDirectoryUtils::compareTwoDirectories(dirOther, dirCurrent);
+            const QFileSystemModel *model = qobject_cast<QFileSystemModel *>(ui->tv_Destination->model());
+
+            QStringList select = comp.missingInTarget.toList();
+            select.append(comp.newerInSource.toList());
+            for (const QString &file : as_const(comp.missingInTarget))
+            {
+                ui->tv_Destination->setCurrentIndex(model->index(file));
+            }
+        }
+
+        void CCopyConfigurationComponent::initCurrentDirectories()
+        {
+            ui->le_CurrentVersion->setText(CDirectoryUtils::applicationDirectoryPath());
+            this->setComboBoxWidth();
+            const QString dir = this->getOtherVersionsSelectedDirectory();
+            if (dir.isEmpty()) { return; }
+
+            // source
+            QFileSystemModel *sourceModel = qobject_cast<QFileSystemModel *>(ui->tv_Source->model());
+            if (!sourceModel)
+            {
+                sourceModel = new QFileSystemModel(this);
+                sourceModel->setFilter(QDir::NoDotAndDotDot | QDir::Files | QDir::Dirs);
+                sourceModel->setNameFilterDisables(false);
+                sourceModel->setNameFilters(QStringList("*.json"));
+                ui->tv_Source->setModel(sourceModel);
+                connect(sourceModel, &QFileSystemModel::directoryLoaded, this, [ = ](const QString & path)
+                {
+                    Q_UNUSED(path);
+                    ui->tv_Source->resizeColumnToContents(0);
+                });
+            }
+            const QModelIndex sourceIndex = sourceModel->setRootPath(dir);
+            ui->tv_Source->setRootIndex(sourceIndex);
+            ui->tv_Source->setSortingEnabled(true);
+
+            // destination
+            QFileSystemModel *destinationModel = qobject_cast<QFileSystemModel *>(ui->tv_Destination->model());
+            if (!destinationModel)
+            {
+                destinationModel = new QFileSystemModel(this);
+                destinationModel->setFilter(QDir::NoDotAndDotDot | QDir::Files | QDir::Dirs);
+                destinationModel->setNameFilterDisables(false);
+                destinationModel->setNameFilters(QStringList("*.json"));
+                ui->tv_Destination->setModel(destinationModel);
+                connect(destinationModel, &QFileSystemModel::directoryLoaded, this, [ = ](const QString & path)
+                {
+                    Q_UNUSED(path);
+                    ui->tv_Destination->resizeColumnToContents(0);
+                });
+            }
+            const QString destinationDir = this->getThisVersionDirectory();
+            const QModelIndex destinationIndex = destinationModel->setRootPath(destinationDir);
+            ui->tv_Destination->setRootIndex(destinationIndex);
+            ui->tv_Destination->setSortingEnabled(true);
+            ui->tv_Destination->resizeColumnToContents(0);
+        }
+
+        void CCopyConfigurationComponent::currentVersionChanged(const QString &text)
+        {
+            Q_UNUSED(text);
+            this->initCurrentDirectories();
+        }
+
+        const QString &CCopyConfigurationComponent::getThisVersionDirectory() const
+        {
+            return ui->rb_Cache->isChecked() ? CDataCache::persistentStore() : CSettingsCache::persistentStore();
+        }
+
+        QString CCopyConfigurationComponent::getOtherVersionsSelectedDirectory() const
+        {
+            const QString s = m_versionDirs.at(ui->cb_OtherVersions->currentIndex());
+            const QFileInfoList dirs(CDirectoryUtils::swiftApplicationDataDirectories());
+            if (dirs.isEmpty()) { return ""; }
+            QString dir;
+            for (const QFileInfo &info : dirs)
+            {
+                if (info.absoluteFilePath().contains(s))
+                {
+                    dir = info.absoluteFilePath();
+                    break;
+                }
+            }
+            if (dir.isEmpty()) { return ""; }
+            dir = CFileUtils::appendFilePaths(dir, ui->rb_Cache->isChecked() ?
+                                              CDataCache::relativeFilePath() :
+                                              CSettingsCache::relativeFilePath());
+            return dir;
+        }
+
+        QStringList CCopyConfigurationComponent::getSelectedFiles() const
+        {
+            const QModelIndexList indexes = ui->tv_Source->selectionModel()->selectedIndexes();
+            if (indexes.isEmpty()) { return QStringList(); }
+            const QFileSystemModel *sourceModel = qobject_cast<QFileSystemModel *>(ui->tv_Source->model());
+
+            QStringList files;
+            for (const QModelIndex &index : indexes)
+            {
+                if (!index.isValid()) continue;
+                const QString file = sourceModel->filePath(index);
+                if (!files.contains(file))
+                {
+                    files.push_back(file);
+                }
+            }
+            return files;
+        }
+
+        void CCopyConfigurationComponent::setComboBoxWidth()
+        {
+            const int width = this->width() * 0.45;
+            ui->cb_OtherVersions->setFixedWidth(width);
+        }
     } // ns
 } // ns
diff --git a/src/blackgui/components/copyconfigurationcomponent.h b/src/blackgui/components/copyconfigurationcomponent.h
index 270d56a01..4fc4b87b3 100644
--- a/src/blackgui/components/copyconfigurationcomponent.h
+++ b/src/blackgui/components/copyconfigurationcomponent.h
@@ -14,6 +14,7 @@
 
 #include "blackgui/blackguiexport.h"
 #include <QFrame>
+#include <QDir>
 
 namespace Ui { class CCopyConfigurationComponent; }
 namespace BlackGui
@@ -21,7 +22,7 @@ namespace BlackGui
     namespace Components
     {
         /**
-         * Copy configuration (ie settings and cache files)
+         * Copy configuration (i.e. settings and cache files)
          */
         class BLACKGUI_EXPORT CCopyConfigurationComponent : public QFrame
         {
@@ -34,7 +35,38 @@ namespace BlackGui
             //! Destructor
             virtual ~CCopyConfigurationComponent();
 
+            //! Cache mode
+            void setCacheMode();
+
+            //! Settings mode
+            void setSettingsMode();
+
+            //! Selected files are copied
+            void copySelectedFiles();
+
+            //! Preselect newer files
+            void preselectMissingOurOutdated();
+
+            //! Init file content
+            void initCurrentDirectories();
+
         private:
+            //! The current version changed
+            void currentVersionChanged(const QString &text);
+
+            //! This version's directory (cache or setting)
+            const QString &getThisVersionDirectory() const;
+
+            //! Get the selected directory
+            QString getOtherVersionsSelectedDirectory() const;
+
+            //! Get the selected files
+            QStringList getSelectedFiles() const;
+
+            //! Combobox width
+            void setComboBoxWidth();
+
+            QStringList m_versionDirs;
             QScopedPointer<Ui::CCopyConfigurationComponent> ui;
         };
     } // ns
diff --git a/src/blackgui/components/copyconfigurationcomponent.ui b/src/blackgui/components/copyconfigurationcomponent.ui
index 6035c2e12..965d310dc 100644
--- a/src/blackgui/components/copyconfigurationcomponent.ui
+++ b/src/blackgui/components/copyconfigurationcomponent.ui
@@ -20,32 +20,110 @@
    <enum>QFrame::Raised</enum>
   </property>
   <layout class="QGridLayout" name="gridLayout">
-   <item row="1" column="1">
-    <widget class="QGroupBox" name="gb_Destination">
-     <property name="title">
-      <string>Destination</string>
-     </property>
-     <layout class="QVBoxLayout" name="verticalLayout">
-      <item>
-       <widget class="QTreeView" name="tv_Destination"/>
-      </item>
-     </layout>
-    </widget>
-   </item>
-   <item row="1" column="0">
+   <item row="3" column="0">
     <widget class="QGroupBox" name="gb_Source">
      <property name="title">
-      <string>Source</string>
+      <string>Source (other versions)</string>
      </property>
      <layout class="QVBoxLayout" name="verticalLayout_2">
       <item>
-       <widget class="QTreeView" name="tv_Source"/>
+       <widget class="QTreeView" name="tv_Source">
+        <property name="alternatingRowColors">
+         <bool>true</bool>
+        </property>
+        <property name="selectionMode">
+         <enum>QAbstractItemView::MultiSelection</enum>
+        </property>
+        <property name="sortingEnabled">
+         <bool>true</bool>
+        </property>
+        <property name="animated">
+         <bool>true</bool>
+        </property>
+       </widget>
       </item>
      </layout>
     </widget>
    </item>
-   <item row="0" column="0">
-    <widget class="QComboBox" name="cb_Version"/>
+   <item row="3" column="1">
+    <widget class="QGroupBox" name="gb_Destination">
+     <property name="title">
+      <string>Destination (this version)</string>
+     </property>
+     <layout class="QVBoxLayout" name="verticalLayout">
+      <item>
+       <widget class="QTreeView" name="tv_Destination">
+        <property name="alternatingRowColors">
+         <bool>true</bool>
+        </property>
+        <property name="selectionMode">
+         <enum>QAbstractItemView::NoSelection</enum>
+        </property>
+        <property name="sortingEnabled">
+         <bool>true</bool>
+        </property>
+        <property name="animated">
+         <bool>true</bool>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item row="1" column="1">
+    <widget class="QLineEdit" name="le_CurrentVersion">
+     <property name="readOnly">
+      <bool>true</bool>
+     </property>
+    </widget>
+   </item>
+   <item row="1" column="0">
+    <widget class="QComboBox" name="cb_OtherVersions"/>
+   </item>
+   <item row="0" column="0" colspan="2">
+    <widget class="QWidget" name="wi_Mode" native="true">
+     <layout class="QHBoxLayout" name="hl_RadioButtons">
+      <property name="leftMargin">
+       <number>0</number>
+      </property>
+      <property name="topMargin">
+       <number>0</number>
+      </property>
+      <property name="bottomMargin">
+       <number>0</number>
+      </property>
+      <item>
+       <widget class="QRadioButton" name="rb_Settings">
+        <property name="text">
+         <string>Settings</string>
+        </property>
+        <property name="checked">
+         <bool>true</bool>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <widget class="QRadioButton" name="rb_Cache">
+        <property name="text">
+         <string>Cache</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <spacer name="hs_Mode">
+        <property name="orientation">
+         <enum>Qt::Horizontal</enum>
+        </property>
+        <property name="sizeHint" stdset="0">
+         <size>
+          <width>40</width>
+          <height>20</height>
+         </size>
+        </property>
+       </spacer>
+      </item>
+     </layout>
+    </widget>
    </item>
   </layout>
  </widget>