diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 11c74b03d..8fe3f159d 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -1,380 +1,381 @@
 add_subdirectory(icons)
 
 include_directories(${CMAKE_CURRENT_BINARY_DIR})
 include_directories(${CMAKE_CURRENT_SOURCE_DIR})
 
 if (NOT DISABLE_KWATCHGNUPG)
     add_subdirectory(kwatchgnupg)
 endif()
 add_subdirectory(libkleopatraclient)
 add_subdirectory(conf)
 add_subdirectory(kconf_update)
 
 if(WIN32)
   set(_kleopatra_extra_uiserver_SRCS uiserver/uiserver_win.cpp)
   set(_kleopatra_extra_SRCS
       utils/gnupg-registry.c
       selftest/registrycheck.cpp
       utils/windowsprocessdevice.cpp
       utils/userinfo_win.cpp
   )
 else()
   set(_kleopatra_extra_uiserver_SRCS uiserver/uiserver_unix.cpp)
   set(_kleopatra_extra_SRCS)
 endif()
 
 set(_kleopatra_uiserver_SRCS
     uiserver/sessiondata.cpp
     uiserver/uiserver.cpp
     ${_kleopatra_extra_uiserver_SRCS}
     uiserver/assuanserverconnection.cpp
     uiserver/echocommand.cpp
     uiserver/decryptverifycommandemailbase.cpp
     uiserver/decryptverifycommandfilesbase.cpp
     uiserver/signcommand.cpp
     uiserver/signencryptfilescommand.cpp
     uiserver/prepencryptcommand.cpp
     uiserver/prepsigncommand.cpp
     uiserver/encryptcommand.cpp
     uiserver/selectcertificatecommand.cpp
     uiserver/importfilescommand.cpp
     uiserver/createchecksumscommand.cpp
     uiserver/verifychecksumscommand.cpp
 
     selftest/uiservercheck.cpp
   )
 
 if(ASSUAN2_FOUND)
   include_directories(${ASSUAN2_INCLUDES})
   set(_kleopatra_uiserver_extra_libs ${ASSUAN2_LIBRARIES})
 else()
   include_directories(${ASSUAN_INCLUDES})
   if(WIN32)
     set(_kleopatra_uiserver_extra_libs ${ASSUAN_VANILLA_LIBRARIES})
   else()
     set(_kleopatra_uiserver_extra_libs ${ASSUAN_PTHREAD_LIBRARIES})
   endif()
 endif()
 
 if(HAVE_GPG_ERR_SOURCE_KLEO)
   add_definitions(-DGPG_ERR_SOURCE_DEFAULT=GPG_ERR_SOURCE_KLEO)
   add_definitions(-DGPGMEPP_ERR_SOURCE_DEFAULT=GPG_ERR_SOURCE_KLEO)
 else()
   add_definitions(-DGPG_ERR_SOURCE_DEFAULT=GPG_ERR_SOURCE_USER_1)
   add_definitions(-DGPGMEPP_ERR_SOURCE_DEFAULT=GPG_ERR_SOURCE_USER_1)
 endif()
 
 ki18n_wrap_ui(_kleopatra_uiserver_SRCS crypto/gui/signingcertificateselectionwidget.ui)
 
 if("${Gpgmepp_VERSION}" VERSION_GREATER_EQUAL "1.14.1")
     set(_kleopatra_deviceinfowatcher_files
         smartcard/deviceinfowatcher.cpp
     )
 else()
     set(_kleopatra_deviceinfowatcher_files)
 endif()
 
 set(_kleopatra_SRCS
   utils/gui-helper.cpp
   utils/filedialog.cpp
   utils/kdpipeiodevice.cpp
   utils/headerview.cpp
   utils/scrollarea.cpp
   utils/dragqueen.cpp
   utils/multivalidator.cpp
   utils/systemtrayicon.cpp
 
   utils/hex.cpp
   utils/path-helper.cpp
   utils/input.cpp
   utils/output.cpp
   utils/validation.cpp
   utils/wsastarter.cpp
   utils/iodevicelogger.cpp
   utils/log.cpp
   utils/action_data.cpp
   utils/types.cpp
   utils/archivedefinition.cpp
   utils/auditlog.cpp
   utils/clipboardmenu.cpp
   utils/kuniqueservice.cpp
   utils/tags.cpp
   utils/writecertassuantransaction.cpp
   utils/keyparameters.cpp
   utils/userinfo.cpp
 
   selftest/selftest.cpp
   selftest/enginecheck.cpp
   selftest/gpgconfcheck.cpp
   selftest/gpgagentcheck.cpp
   selftest/libkleopatrarccheck.cpp
 
   ${_kleopatra_extra_SRCS}
 
   view/keylistcontroller.cpp
   view/keytreeview.cpp
   view/searchbar.cpp
   view/smartcardwidget.cpp
   view/padwidget.cpp
   view/pgpcardwidget.cpp
   view/pivcardwidget.cpp
   view/netkeywidget.cpp
   view/nullpinwidget.cpp
   view/tabwidget.cpp
   view/keycacheoverlay.cpp
   view/waitwidget.cpp
   view/welcomewidget.cpp
 
   dialogs/certificateselectiondialog.cpp
   dialogs/certifywidget.cpp
   dialogs/expirydialog.cpp
   dialogs/lookupcertificatesdialog.cpp
   dialogs/ownertrustdialog.cpp
   dialogs/selftestdialog.cpp
   dialogs/certifycertificatedialog.cpp
   dialogs/revokecertificationwidget.cpp
   dialogs/revokecertificationdialog.cpp
   dialogs/adduseriddialog.cpp
   dialogs/addemaildialog.cpp
   dialogs/deletecertificatesdialog.cpp
   dialogs/setinitialpindialog.cpp
   dialogs/certificatedetailswidget.cpp
   dialogs/trustchainwidget.cpp
   dialogs/weboftrustwidget.cpp
   dialogs/weboftrustdialog.cpp
   dialogs/exportdialog.cpp
   dialogs/subkeyswidget.cpp
   dialogs/gencardkeydialog.cpp
   dialogs/updatenotification.cpp
   dialogs/pivcardapplicationadministrationkeyinputdialog.cpp
   dialogs/certificatedetailsinputwidget.cpp
   dialogs/createcsrforcardkeydialog.cpp
+  dialogs/groupdetailsdialog.cpp
 
   crypto/controller.cpp
   crypto/certificateresolver.cpp
   crypto/sender.cpp
   crypto/recipient.cpp
   crypto/task.cpp
   crypto/taskcollection.cpp
   crypto/decryptverifytask.cpp
   crypto/decryptverifyemailcontroller.cpp
   crypto/decryptverifyfilescontroller.cpp
   crypto/autodecryptverifyfilescontroller.cpp
   crypto/encryptemailtask.cpp
   crypto/encryptemailcontroller.cpp
   crypto/newsignencryptemailcontroller.cpp
   crypto/signencrypttask.cpp
   crypto/signencryptfilescontroller.cpp
   crypto/signemailtask.cpp
   crypto/signemailcontroller.cpp
   crypto/createchecksumscontroller.cpp
   crypto/verifychecksumscontroller.cpp
 
   crypto/gui/wizard.cpp
   crypto/gui/wizardpage.cpp
 
   crypto/gui/certificateselectionline.cpp
   crypto/gui/certificatelineedit.cpp
   crypto/gui/signingcertificateselectionwidget.cpp
   crypto/gui/signingcertificateselectiondialog.cpp
 
   crypto/gui/resultitemwidget.cpp
   crypto/gui/resultlistwidget.cpp
   crypto/gui/resultpage.cpp
 
   crypto/gui/newresultpage.cpp
   crypto/gui/signencryptfileswizard.cpp
 
   crypto/gui/signencryptemailconflictdialog.cpp
 
   crypto/gui/decryptverifyoperationwidget.cpp
   crypto/gui/decryptverifyfileswizard.cpp
   crypto/gui/decryptverifyfilesdialog.cpp
 
   crypto/gui/objectspage.cpp
   crypto/gui/resolverecipientspage.cpp
   crypto/gui/signerresolvepage.cpp
   crypto/gui/encryptemailwizard.cpp
   crypto/gui/signemailwizard.cpp
   crypto/gui/signencryptwidget.cpp
   crypto/gui/signencryptwizard.cpp
   crypto/gui/unknownrecipientwidget.cpp
 
   crypto/gui/verifychecksumsdialog.cpp
 
   commands/command.cpp
   commands/gnupgprocesscommand.cpp
   commands/detailscommand.cpp
   commands/exportcertificatecommand.cpp
   commands/importcertificatescommand.cpp
   commands/importcertificatefromfilecommand.cpp
   commands/importcertificatefromclipboardcommand.cpp
   commands/importcertificatefromdatacommand.cpp
   commands/lookupcertificatescommand.cpp
   commands/reloadkeyscommand.cpp
   commands/refreshx509certscommand.cpp
   commands/refreshopenpgpcertscommand.cpp
   commands/deletecertificatescommand.cpp
   commands/decryptverifyfilescommand.cpp
   commands/signencryptfilescommand.cpp
   commands/signencryptfoldercommand.cpp
   commands/encryptclipboardcommand.cpp
   commands/signclipboardcommand.cpp
   commands/decryptverifyclipboardcommand.cpp
   commands/clearcrlcachecommand.cpp
   commands/dumpcrlcachecommand.cpp
   commands/dumpcertificatecommand.cpp
   commands/importcrlcommand.cpp
   commands/changeexpirycommand.cpp
   commands/changeownertrustcommand.cpp
   commands/changeroottrustcommand.cpp
   commands/changepassphrasecommand.cpp
   commands/certifycertificatecommand.cpp
   commands/revokecertificationcommand.cpp
   commands/selftestcommand.cpp
   commands/exportsecretkeycommand.cpp
   commands/exportopenpgpcertstoservercommand.cpp
   commands/adduseridcommand.cpp
   commands/newcertificatecommand.cpp
   commands/setinitialpincommand.cpp
   commands/learncardkeyscommand.cpp
   commands/checksumcreatefilescommand.cpp
   commands/checksumverifyfilescommand.cpp
   commands/exportpaperkeycommand.cpp
   commands/importpaperkeycommand.cpp
   commands/genrevokecommand.cpp
   commands/keytocardcommand.cpp
   commands/cardcommand.cpp
   commands/pivgeneratecardkeycommand.cpp
   commands/changepincommand.cpp
   commands/authenticatepivcardapplicationcommand.cpp
   commands/setpivcardapplicationadministrationkeycommand.cpp
   commands/certificatetopivcardcommand.cpp
   commands/importcertificatefrompivcardcommand.cpp
   commands/createopenpgpkeyfromcardkeyscommand.cpp
   commands/createcsrforcardkeycommand.cpp
 
   ${_kleopatra_uiserver_files}
 
   conf/configuredialog.cpp
 
   newcertificatewizard/listwidget.cpp
   newcertificatewizard/newcertificatewizard.cpp
 
   smartcard/readerstatus.cpp
   smartcard/card.cpp
   smartcard/openpgpcard.cpp
   smartcard/netkeycard.cpp
   smartcard/pivcard.cpp
   smartcard/keypairinfo.cpp
   smartcard/utils.cpp
 
   ${_kleopatra_deviceinfowatcher_files}
 
   aboutdata.cpp
   systrayicon.cpp
   kleopatraapplication.cpp
   mainwindow.cpp
   main.cpp
   kleopatra.qrc
 )
 
 if(WIN32)
   configure_file (versioninfo.rc.in versioninfo.rc)
   set(_kleopatra_SRCS ${CMAKE_CURRENT_BINARY_DIR}/versioninfo.rc ${_kleopatra_SRCS})
 endif()
 
 if(HAVE_KCMUTILS)
   set (_kleopatra_extra_libs KF5::KCMUtils)
 else()
   set (_kleopatra_SRCS conf/kleopageconfigdialog.cpp ${_kleopatra_SRCS})
 endif()
 
 ecm_qt_declare_logging_category(_kleopatra_SRCS HEADER kleopatra_debug.h IDENTIFIER KLEOPATRA_LOG CATEGORY_NAME org.kde.pim.kleopatra
         DESCRIPTION "kleopatra (kleopatra)"
         OLD_CATEGORY_NAMES log_kleopatra
         EXPORT KLEOPATRA
     )
 
 
 if(KLEO_MODEL_TEST)
   add_definitions(-DKLEO_MODEL_TEST)
   set(_kleopatra_SRCS ${_kleopatra_SRCS} models/modeltest.cpp)
 endif()
 
 ki18n_wrap_ui(_kleopatra_SRCS
   dialogs/expirydialog.ui
   dialogs/lookupcertificatesdialog.ui
   dialogs/ownertrustdialog.ui
   dialogs/selectchecklevelwidget.ui
   dialogs/selftestdialog.ui
   dialogs/adduseriddialog.ui
   dialogs/setinitialpindialog.ui
   dialogs/certificatedetailswidget.ui
   dialogs/trustchainwidget.ui
   dialogs/subkeyswidget.ui
   newcertificatewizard/listwidget.ui
   newcertificatewizard/chooseprotocolpage.ui
   newcertificatewizard/enterdetailspage.ui
   newcertificatewizard/keycreationpage.ui
   newcertificatewizard/resultpage.ui
   newcertificatewizard/advancedsettingsdialog.ui
 )
 
 kconfig_add_kcfg_files(_kleopatra_SRCS
   kcfg/tooltippreferences.kcfgc
   kcfg/emailoperationspreferences.kcfgc
   kcfg/fileoperationspreferences.kcfgc
   kcfg/smimevalidationpreferences.kcfgc
   kcfg/tagspreferences.kcfgc
   kcfg/settings.kcfgc
 )
 
 file(GLOB ICONS_SRCS "${CMAKE_CURRENT_SOURCE_DIR}/icons/*-apps-kleopatra.png")
 ecm_add_app_icon(_kleopatra_SRCS ICONS ${ICONS_SRCS})
 
 add_executable(kleopatra_bin ${_kleopatra_SRCS} ${_kleopatra_uiserver_SRCS})
 #if (COMPILE_WITH_UNITY_CMAKE_SUPPORT)
 #    set_target_properties(kleopatra_bin PROPERTIES UNITY_BUILD ON)
 #endif()
 set_target_properties(kleopatra_bin PROPERTIES OUTPUT_NAME kleopatra)
 
 if (WIN32)
   set(_kleopatra_platform_libs "secur32")
 endif ()
 
 target_link_libraries(kleopatra_bin
   Gpgmepp
   QGpgme
   ${_kleopatra_extra_libs}
   KF5::Libkleo
   KF5::Mime
   KF5::I18n
   KF5::XmlGui
   KF5::IconThemes
   KF5::WindowSystem
   KF5::CoreAddons
   KF5::ItemModels
   KF5::Crash
   Qt5::Network
   Qt5::PrintSupport # Printing secret keys
   ${_kleopatra_uiserver_extra_libs}
   ${_kleopatra_dbusaddons_libs}
   kleopatraclientcore
   ${_kleopatra_platform_libs}
 )
 
 install(TARGETS kleopatra_bin ${KDE_INSTALL_TARGETS_DEFAULT_ARGS})
 
 install(
   PROGRAMS data/org.kde.kleopatra.desktop data/kleopatra_import.desktop
   DESTINATION ${KDE_INSTALL_APPDIR}
 )
 install(FILES data/org.kde.kleopatra.appdata.xml DESTINATION ${KDE_INSTALL_METAINFODIR})
 install(
   FILES data/kleopatra_signencryptfiles.desktop
         data/kleopatra_signencryptfolders.desktop
         data/kleopatra_decryptverifyfiles.desktop
         data/kleopatra_decryptverifyfolders.desktop
   DESTINATION ${KDE_INSTALL_KSERVICES5DIR}
 )
diff --git a/src/dialogs/groupdetailsdialog.cpp b/src/dialogs/groupdetailsdialog.cpp
new file mode 100644
index 000000000..b4b129fca
--- /dev/null
+++ b/src/dialogs/groupdetailsdialog.cpp
@@ -0,0 +1,134 @@
+/*
+    dialogs/groupdetailsdialog.cpp
+
+    This file is part of Kleopatra, the KDE keymanager
+    SPDX-FileCopyrightText: 2021 g10 Code GmbH
+    SPDX-FileContributor: Ingo Klöcker <dev@ingo-kloecker.de>
+
+    SPDX-License-Identifier: GPL-2.0-or-later
+*/
+
+#include "groupdetailsdialog.h"
+
+#include "commands/detailscommand.h"
+#include "view/keytreeview.h"
+
+#include <Libkleo/KeyGroup>
+#include <Libkleo/KeyListModel>
+
+#include <KConfigGroup>
+#include <KGuiItem>
+#include <KLocalizedString>
+#include <KSharedConfig>
+#include <KStandardGuiItem>
+
+#include <QDialogButtonBox>
+#include <QLabel>
+#include <QPushButton>
+#include <QTreeView>
+#include <QVBoxLayout>
+
+#include "kleopatra_debug.h"
+
+using namespace Kleo;
+using namespace Kleo::Commands;
+using namespace Kleo::Dialogs;
+
+Q_DECLARE_METATYPE(GpgME::Key)
+
+class GroupDetailsDialog::Private
+{
+    friend class ::Kleo::Dialogs::GroupDetailsDialog;
+    GroupDetailsDialog *const q;
+
+    struct {
+        QLabel *groupNameLabel = nullptr;
+        KeyTreeView *treeView = nullptr;
+        QDialogButtonBox *buttonBox = nullptr;
+    } ui;
+    KeyGroup group;
+
+public:
+    Private(GroupDetailsDialog *qq)
+        : q(qq)
+    {
+        auto mainLayout = new QVBoxLayout(q);
+
+        ui.groupNameLabel = new QLabel();
+        ui.groupNameLabel->setWordWrap(true);
+        mainLayout->addWidget(ui.groupNameLabel);
+
+        ui.treeView = new KeyTreeView(q);
+        ui.treeView->view()->setRootIsDecorated(false);
+        ui.treeView->view()->setSelectionMode(QAbstractItemView::SingleSelection);
+        ui.treeView->setFlatModel(AbstractKeyListModel::createFlatKeyListModel(ui.treeView));
+        ui.treeView->setHierarchicalView(false);
+        connect(ui.treeView->view(), &QAbstractItemView::doubleClicked,
+                q, [this] (const QModelIndex &index) { showKeyDetails(index); });
+        mainLayout->addWidget(ui.treeView);
+
+        ui.buttonBox = new QDialogButtonBox(QDialogButtonBox::Close);
+        KGuiItem::assign(ui.buttonBox->button(QDialogButtonBox::Close), KStandardGuiItem::close());
+        connect(ui.buttonBox, &QDialogButtonBox::clicked, q, &QDialog::close);
+        mainLayout->addWidget(ui.buttonBox);
+
+        // calculate default size with enough space for the key list
+        const auto fm = ui.treeView->fontMetrics();
+        const QSize sizeHint = q->sizeHint();
+        const QSize defaultSize = QSize(qMax(sizeHint.width(), 150 * fm.horizontalAdvance(QLatin1Char('x'))),
+                                        sizeHint.height() - ui.treeView->sizeHint().height() + 20 * fm.lineSpacing());
+        restoreLayout(defaultSize);
+    }
+
+    ~Private()
+    {
+        saveLayout();
+    }
+
+private:
+    void saveLayout()
+    {
+        KConfigGroup configGroup(KSharedConfig::openConfig(), "GroupDetailsDialog");
+        ui.treeView->saveLayout(configGroup);
+        configGroup.writeEntry("Size", q->size());
+        configGroup.sync();
+    }
+
+    void restoreLayout(const QSize &defaultSize)
+    {
+        const KConfigGroup configGroup(KSharedConfig::openConfig(), "GroupDetailsDialog");
+        ui.treeView->restoreLayout(configGroup);
+        const QSize size = configGroup.readEntry("Size", defaultSize);
+        if (size.isValid()) {
+            q->resize(size);
+        }
+    }
+
+    void showKeyDetails(const QModelIndex &index)
+    {
+        const GpgME::Key key = ui.treeView->view()->model()->data(index, KeyList::KeyRole).value<GpgME::Key>();
+        if (!key.isNull()) {
+            auto cmd = new DetailsCommand(key, nullptr);
+            cmd->setParentWidget(q);
+            cmd->start();
+        }
+    }
+};
+
+GroupDetailsDialog::GroupDetailsDialog(QWidget *parent)
+    : QDialog(parent)
+    , d(new Private(this))
+{
+    setWindowTitle(i18nc("@title:window", "Group Details"));
+}
+
+GroupDetailsDialog::~GroupDetailsDialog()
+{
+}
+
+void GroupDetailsDialog::setGroup(const KeyGroup &group)
+{
+    d->group = group;
+    d->ui.groupNameLabel->setText(group.name());
+    d->ui.treeView->setKeys(group.keys());
+}
diff --git a/src/dialogs/groupdetailsdialog.h b/src/dialogs/groupdetailsdialog.h
new file mode 100644
index 000000000..384430017
--- /dev/null
+++ b/src/dialogs/groupdetailsdialog.h
@@ -0,0 +1,40 @@
+/*
+    dialogs/groupdetailsdialog.h
+
+    This file is part of Kleopatra, the KDE keymanager
+    SPDX-FileCopyrightText: 2021 g10 Code GmbH
+    SPDX-FileContributor: Ingo Klöcker <dev@ingo-kloecker.de>
+
+    SPDX-License-Identifier: GPL-2.0-or-later
+*/
+
+#ifndef __KLEOPATRA_DIALOGS_GROUPDETAILSDIALOG_H__
+#define __KLEOPATRA_DIALOGS_GROUPDETAILSDIALOG_H__
+
+#include <QDialog>
+
+namespace Kleo
+{
+class KeyGroup;
+
+namespace Dialogs
+{
+
+class GroupDetailsDialog : public QDialog
+{
+    Q_OBJECT
+public:
+    explicit GroupDetailsDialog(QWidget *parent = nullptr);
+    ~GroupDetailsDialog() override;
+
+    void setGroup(const Kleo::KeyGroup &group);
+
+private:
+    class Private;
+    const std::unique_ptr<Private> d;
+};
+
+}
+}
+
+#endif // __KLEOPATRA_DIALOGS_GROUPDETAILSDIALOG_H__