diff --git a/Telegram/SourceFiles/calls/group/calls_group_members.cpp b/Telegram/SourceFiles/calls/group/calls_group_members.cpp
index be0499359..7f4cfbfe2 100644
--- a/Telegram/SourceFiles/calls/group/calls_group_members.cpp
+++ b/Telegram/SourceFiles/calls/group/calls_group_members.cpp
@@ -1195,7 +1195,10 @@ base::unique_qptr<Ui::PopupMenu> Members::Controller::createRowContextMenu(
 	const auto admin = IsGroupCallAdmin(_peer, participantPeer);
 	const auto session = &_peer->session();
 	const auto getCurrentWindow = [=]() -> Window::SessionController* {
-		if (const auto window = Core::App().activeWindow()) {
+		if (const auto window = Core::App().separateWindowForPeer(
+				participantPeer)) {
+			return window->sessionController();
+		} else if (const auto window = Core::App().activeWindow()) {
 			if (const auto controller = window->sessionController()) {
 				if (&controller->session() == session) {
 					return controller;
@@ -1221,7 +1224,7 @@ base::unique_qptr<Ui::PopupMenu> Members::Controller::createRowContextMenu(
 			? st::groupCallPopupMenuWithVolume
 			: st::groupCallPopupMenu));
 	const auto weakMenu = Ui::MakeWeak(result.get());
-	const auto performOnMainWindow = [=](auto callback) {
+	const auto withActiveWindow = [=](auto callback) {
 		if (const auto window = getWindow()) {
 			if (const auto menu = weakMenu.data()) {
 				menu->discardParentReActivate();
@@ -1236,12 +1239,12 @@ base::unique_qptr<Ui::PopupMenu> Members::Controller::createRowContextMenu(
 		}
 	};
 	const auto showProfile = [=] {
-		performOnMainWindow([=](not_null<Window::SessionController*> window) {
+		withActiveWindow([=](not_null<Window::SessionController*> window) {
 			window->showPeerInfo(participantPeer);
 		});
 	};
 	const auto showHistory = [=] {
-		performOnMainWindow([=](not_null<Window::SessionController*> window) {
+		withActiveWindow([=](not_null<Window::SessionController*> window) {
 			window->showPeerHistory(
 				participantPeer,
 				Window::SectionShow::Way::Forward);
diff --git a/Telegram/SourceFiles/core/application.cpp b/Telegram/SourceFiles/core/application.cpp
index 225452dc3..b1e2278b9 100644
--- a/Telegram/SourceFiles/core/application.cpp
+++ b/Telegram/SourceFiles/core/application.cpp
@@ -123,6 +123,7 @@ Application *Application::Instance = nullptr;
 struct Application::Private {
 	base::Timer quitTimer;
 	UiIntegration uiIntegration;
+	Settings settings;
 };
 
 Application::Application(not_null<Launcher*> launcher)
@@ -170,6 +171,7 @@ Application::~Application() {
 	// Depend on activeWindow() for now :(
 	Shortcuts::Finish();
 
+	_separateWindows.clear();
 	_window = nullptr;
 	_mediaView = nullptr;
 	_notifications->clearAllFast();
@@ -264,6 +266,7 @@ void Application::run() {
 	QMimeDatabase().mimeTypeForName(qsl("text/plain"));
 
 	_window = std::make_unique<Window::Controller>();
+	_lastActiveWindow = _window.get();
 
 	_domain->activeChanges(
 	) | rpl::start_with_next([=](not_null<Main::Account*> account) {
@@ -371,8 +374,8 @@ void Application::startSettingsAndBackground() {
 }
 
 void Application::checkSystemDarkMode() {
-	const auto maybeDarkMode = _settings.systemDarkMode();
-	const auto darkModeEnabled = _settings.systemDarkModeEnabled();
+	const auto maybeDarkMode = settings().systemDarkMode();
+	const auto darkModeEnabled = settings().systemDarkModeEnabled();
 	const auto needToSwitch = darkModeEnabled
 		&& maybeDarkMode
 		&& (*maybeDarkMode != Window::Theme::IsNightMode());
@@ -384,11 +387,11 @@ void Application::checkSystemDarkMode() {
 
 void Application::startSystemDarkModeViewer() {
 	if (Window::Theme::Background()->editingTheme()) {
-		_settings.setSystemDarkModeEnabled(false);
+		settings().setSystemDarkModeEnabled(false);
 	}
 	rpl::merge(
-		_settings.systemDarkModeChanges() | rpl::to_empty,
-		_settings.systemDarkModeEnabledChanges() | rpl::to_empty
+		settings().systemDarkModeChanges() | rpl::to_empty,
+		settings().systemDarkModeEnabledChanges() | rpl::to_empty
 	) | rpl::start_with_next([=] {
 		checkSystemDarkMode();
 	}, _lifetime);
@@ -397,7 +400,7 @@ void Application::startSystemDarkModeViewer() {
 auto Application::prepareEmojiSourceImages()
 -> std::shared_ptr<Ui::Emoji::UniversalImages> {
 	const auto &images = Ui::Emoji::SourceImages();
-	if (_settings.largeEmoji()) {
+	if (settings().largeEmoji()) {
 		return images;
 	}
 	Ui::Emoji::ClearSourceImages(images);
@@ -471,6 +474,10 @@ bool Application::eventFilter(QObject *object, QEvent *e) {
 	return QObject::eventFilter(object, e);
 }
 
+Settings &Application::settings() {
+	return _private->settings;
+}
+
 void Application::saveSettingsDelayed(crl::time delay) {
 	if (_saveSettingsTimer) {
 		_saveSettingsTimer->callOnce(delay);
@@ -508,18 +515,17 @@ void Application::constructFallbackProductionConfig(
 void Application::setCurrentProxy(
 		const MTP::ProxyData &proxy,
 		MTP::ProxyData::Settings settings) {
+	auto &my = _private->settings.proxy();
 	const auto current = [&] {
-		return _settings.proxy().isEnabled()
-			? _settings.proxy().selected()
-			: MTP::ProxyData();
+		return my.isEnabled() ? my.selected() : MTP::ProxyData();
 	};
 	const auto was = current();
-	_settings.proxy().setSelected(proxy);
-	_settings.proxy().setSettings(settings);
+	my.setSelected(proxy);
+	my.setSettings(settings);
 	const auto now = current();
 	refreshGlobalProxy();
 	_proxyChanges.fire({ was, now });
-	_settings.proxy().connectionTypeChangesNotify();
+	my.connectionTypeChangesNotify();
 }
 
 auto Application::proxyChanges() const -> rpl::producer<ProxyChange> {
@@ -527,10 +533,10 @@ auto Application::proxyChanges() const -> rpl::producer<ProxyChange> {
 }
 
 void Application::badMtprotoConfigurationError() {
-	if (_settings.proxy().isEnabled() && !_badProxyDisableBox) {
+	if (settings().proxy().isEnabled() && !_badProxyDisableBox) {
 		const auto disableCallback = [=] {
 			setCurrentProxy(
-				_settings.proxy().selected(),
+				settings().proxy().selected(),
 				MTP::ProxyData::Settings::System);
 		};
 		_badProxyDisableBox = Ui::show(Box<Ui::InformBox>(
@@ -542,7 +548,7 @@ void Application::badMtprotoConfigurationError() {
 void Application::startLocalStorage() {
 	Local::start();
 	_saveSettingsTimer.emplace([=] { saveSettings(); });
-	_settings.saveDelayedRequests() | rpl::start_with_next([=] {
+	settings().saveDelayedRequests() | rpl::start_with_next([=] {
 		saveSettingsDelayed();
 	}, _lifetime);
 }
@@ -550,12 +556,12 @@ void Application::startLocalStorage() {
 void Application::startEmojiImageLoader() {
 	_emojiImageLoader.with([
 		source = prepareEmojiSourceImages(),
-		large = _settings.largeEmoji()
+		large = settings().largeEmoji()
 	](Stickers::EmojiImageLoader &loader) mutable {
 		loader.init(std::move(source), large);
 	});
 
-	_settings.largeEmojiChanges(
+	settings().largeEmojiChanges(
 	) | rpl::start_with_next([=](bool large) {
 		if (large) {
 			_clearEmojiImageLoaderTimer.cancel();
@@ -913,9 +919,11 @@ void Application::checkAutoLock(crl::time lastNonIdleTime) {
 
 	checkLocalTime();
 	const auto now = crl::now();
-	const auto shouldLockInMs = _settings.autoLock() * 1000LL;
+	const auto shouldLockInMs = settings().autoLock() * 1000LL;
 	const auto checkTimeMs = now - lastNonIdleTime;
-	if (checkTimeMs >= shouldLockInMs || (_shouldLockAt > 0 && now > _shouldLockAt + kAutoLockTimeoutLateMs)) {
+	if (checkTimeMs >= shouldLockInMs
+		|| (_shouldLockAt > 0
+			&& now > _shouldLockAt + kAutoLockTimeoutLateMs)) {
 		_shouldLockAt = 0;
 		_autoLockTimer.cancel();
 		lockByPasscode();
@@ -961,10 +969,39 @@ void Application::saveCurrentDraftsToHistories() {
 	}
 }
 
-Window::Controller *Application::activeWindow() const {
+Window::Controller *Application::mainWindow() const {
 	return _window.get();
 }
 
+Window::Controller *Application::separateWindowForPeer(
+		not_null<PeerData*> peer) const {
+	for (const auto &[history, window] : _separateWindows) {
+		if (history->peer == peer) {
+			return window.get();
+		}
+	}
+	return nullptr;
+}
+
+Window::Controller *Application::ensureSeparateWindowForPeer(
+		not_null<PeerData*> peer) {
+	if (const auto existing = separateWindowForPeer(peer)) {
+		return existing;
+	}
+	const auto result = _separateWindows.emplace(
+		peer->owner().history(peer),
+		std::make_unique<Window::Controller>()).first->second.get();
+	result->showAccount(&peer->account());
+	result->sessionController()->showPeerHistory(peer);
+	result->widget()->show();
+	result->finishFirstShow();
+	return result;
+}
+
+Window::Controller *Application::activeWindow() const {
+	return _lastActiveWindow;
+}
+
 bool Application::closeActiveWindow() {
 	if (hideMediaView()) {
 		return true;
diff --git a/Telegram/SourceFiles/core/application.h b/Telegram/SourceFiles/core/application.h
index 219579b27..da8f1cf96 100644
--- a/Telegram/SourceFiles/core/application.h
+++ b/Telegram/SourceFiles/core/application.h
@@ -133,7 +133,12 @@ public:
 	// Windows interface.
 	bool hasActiveWindow(not_null<Main::Session*> session) const;
 	void saveCurrentDraftsToHistories();
+	[[nodiscard]] Window::Controller *mainWindow() const;
 	[[nodiscard]] Window::Controller *activeWindow() const;
+	[[nodiscard]] Window::Controller *separateWindowForPeer(
+		not_null<PeerData*> peer) const;
+	Window::Controller *ensureSeparateWindowForPeer(
+		not_null<PeerData*> peer);
 	bool closeActiveWindow();
 	bool minimizeActiveWindow();
 	[[nodiscard]] QWidget *getFileDialogParent();
@@ -147,9 +152,7 @@ public:
 	[[nodiscard]] QPoint getPointForCallPanelCenter() const;
 
 	void startSettingsAndBackground();
-	[[nodiscard]] Settings &settings() {
-		return _settings;
-	}
+	[[nodiscard]] Settings &settings();
 	void saveSettingsDelayed(crl::time delay = kDefaultSaveDelay);
 	void saveSettings();
 
@@ -337,6 +340,11 @@ private:
 	const std::unique_ptr<Export::Manager> _exportManager;
 	const std::unique_ptr<Calls::Instance> _calls;
 	std::unique_ptr<Window::Controller> _window;
+	base::flat_map<
+		not_null<History*>,
+		std::unique_ptr<Window::Controller>> _separateWindows;
+	Window::Controller *_lastActiveWindow = nullptr;
+
 	std::unique_ptr<Media::View::OverlayWidget> _mediaView;
 	const std::unique_ptr<Lang::Instance> _langpack;
 	const std::unique_ptr<Lang::CloudManager> _langCloudManager;
diff --git a/Telegram/SourceFiles/dialogs/dialogs_inner_widget.cpp b/Telegram/SourceFiles/dialogs/dialogs_inner_widget.cpp
index 21096322f..1d1275aa1 100644
--- a/Telegram/SourceFiles/dialogs/dialogs_inner_widget.cpp
+++ b/Telegram/SourceFiles/dialogs/dialogs_inner_widget.cpp
@@ -1052,7 +1052,7 @@ void InnerWidget::mousePressEvent(QMouseEvent *e) {
 	}
 	if (anim::Disabled()
 		&& (!_pressed || !_pressed->entry()->isPinnedDialog(_filterId))) {
-		mousePressReleased(e->globalPos(), e->button());
+		mousePressReleased(e->globalPos(), e->button(), e->modifiers());
 	}
 }
 
@@ -1274,12 +1274,13 @@ bool InnerWidget::pinnedShiftAnimationCallback(crl::time now) {
 }
 
 void InnerWidget::mouseReleaseEvent(QMouseEvent *e) {
-	mousePressReleased(e->globalPos(), e->button());
+	mousePressReleased(e->globalPos(), e->button(), e->modifiers());
 }
 
 void InnerWidget::mousePressReleased(
 		QPoint globalPosition,
-		Qt::MouseButton button) {
+		Qt::MouseButton button,
+		Qt::KeyboardModifiers modifiers) {
 	auto wasDragging = (_dragging != nullptr);
 	if (wasDragging) {
 		updateReorderIndexGetCount();
@@ -1322,7 +1323,7 @@ void InnerWidget::mousePressReleased(
 				&& peerSearchPressed == _peerSearchSelected)
 			|| (searchedPressed >= 0
 				&& searchedPressed == _searchedSelected)) {
-			chooseRow();
+			chooseRow(modifiers);
 		}
 	}
 }
@@ -1758,7 +1759,7 @@ void InnerWidget::contextMenuEvent(QContextMenuEvent *e) {
 
 	_menuRow = row;
 	if (_pressButton != Qt::LeftButton) {
-		mousePressReleased(e->globalPos(), _pressButton);
+		mousePressReleased(e->globalPos(), _pressButton, e->modifiers());
 	}
 
 	_menu = base::make_unique_q<Ui::PopupMenu>(
@@ -2689,13 +2690,21 @@ ChosenRow InnerWidget::computeChosenRow() const {
 	return ChosenRow();
 }
 
-bool InnerWidget::chooseRow() {
+bool InnerWidget::chooseRow(Qt::KeyboardModifiers modifiers) {
 	if (chooseCollapsedRow()) {
 		return true;
 	} else if (chooseHashtag()) {
 		return true;
 	}
-	const auto chosen = computeChosenRow();
+	const auto modifyChosenRow = [](
+			ChosenRow row,
+			Qt::KeyboardModifiers modifiers) {
+#ifdef _DEBUG
+		row.newWindow = (modifiers & Qt::ControlModifier);
+#endif
+		return row;
+	};
+	const auto chosen = modifyChosenRow(computeChosenRow(), modifiers);
 	if (chosen.key) {
 		if (IsServerMsgId(chosen.message.fullId.msg)) {
 			session().local().saveRecentSearchHashtags(_filter);
diff --git a/Telegram/SourceFiles/dialogs/dialogs_inner_widget.h b/Telegram/SourceFiles/dialogs/dialogs_inner_widget.h
index bb8d34601..3fb61d03c 100644
--- a/Telegram/SourceFiles/dialogs/dialogs_inner_widget.h
+++ b/Telegram/SourceFiles/dialogs/dialogs_inner_widget.h
@@ -46,6 +46,7 @@ struct ChosenRow {
 	Key key;
 	Data::MessagePosition message;
 	bool filteredRow = false;
+	bool newWindow = false;
 };
 
 enum class SearchRequestType {
@@ -95,7 +96,7 @@ public:
 	void refreshEmptyLabel();
 	void resizeEmptyLabel();
 
-	bool chooseRow();
+	bool chooseRow(Qt::KeyboardModifiers modifiers = {});
 
 	void scrollToEntry(const RowDescriptor &entry);
 
@@ -192,7 +193,10 @@ private:
 	void refreshDialogRow(RowDescriptor row);
 
 	void clearMouseSelection(bool clearSelection = false);
-	void mousePressReleased(QPoint globalPosition, Qt::MouseButton button);
+	void mousePressReleased(
+		QPoint globalPosition,
+		Qt::MouseButton button,
+		Qt::KeyboardModifiers modifiers);
 	void clearIrrelevantState();
 	void selectByMouse(QPoint globalPosition);
 	void loadPeerPhotos();
diff --git a/Telegram/SourceFiles/dialogs/dialogs_widget.cpp b/Telegram/SourceFiles/dialogs/dialogs_widget.cpp
index 8535fad4d..bb4ba1cb9 100644
--- a/Telegram/SourceFiles/dialogs/dialogs_widget.cpp
+++ b/Telegram/SourceFiles/dialogs/dialogs_widget.cpp
@@ -31,6 +31,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "boxes/peer_list_box.h"
 #include "boxes/peers/edit_participants_box.h"
 #include "window/window_adaptive.h"
+#include "window/window_controller.h"
 #include "window/window_session_controller.h"
 #include "window/window_slide_animation.h"
 #include "window/window_connecting_widget.h"
@@ -226,7 +227,11 @@ Widget::Widget(
 		const auto openSearchResult = !controller->selectingPeer()
 			&& row.filteredRow;
 		if (const auto history = row.key.history()) {
-			controller->content()->choosePeer(
+			const auto window = row.newWindow
+				? Core::App().ensureSeparateWindowForPeer(
+					history->peer)->sessionController()
+				: controller.get();
+			window->content()->choosePeer(
 				history->peer->id,
 				(controller->uniqueChatsInSearchResults()
 					? ShowAtUnreadMsgId
diff --git a/Telegram/SourceFiles/window/window_controller.cpp b/Telegram/SourceFiles/window/window_controller.cpp
index 69c9fe997..f69b3ac7e 100644
--- a/Telegram/SourceFiles/window/window_controller.cpp
+++ b/Telegram/SourceFiles/window/window_controller.cpp
@@ -30,6 +30,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "window/themes/window_theme.h"
 #include "window/themes/window_theme_editor.h"
 #include "ui/boxes/confirm_box.h"
+#include "data/data_peer.h"
 #include "mainwindow.h"
 #include "apiwrap.h" // ApiWrap::acceptTerms.
 #include "facades.h"
@@ -40,8 +41,16 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 
 namespace Window {
 
-Controller::Controller()
-: _widget(this)
+Controller::Controller() : Controller(CreateArgs{}) {
+}
+
+Controller::Controller(not_null<PeerData*> singlePeer)
+: Controller(CreateArgs{ singlePeer.get() }) {
+}
+
+Controller::Controller(CreateArgs &&args)
+: _singlePeer(args.singlePeer)
+, _widget(this)
 , _adaptive(std::make_unique<Adaptive>())
 , _isActiveTimer([=] { updateIsActive(); }) {
 	_widget.init();
@@ -54,6 +63,8 @@ Controller::~Controller() {
 }
 
 void Controller::showAccount(not_null<Main::Account*> account) {
+	Expects(!_singlePeer || &_singlePeer->account() == account);
+
 	const auto prevSessionUniqueId = (_account && _account->sessionExists())
 		? _account->session().uniqueId()
 		: 0;
@@ -118,6 +129,10 @@ void Controller::showAccount(not_null<Main::Account*> account) {
 	}, _accountLifetime);
 }
 
+PeerData *Controller::singlePeer() const {
+	return _singlePeer;
+}
+
 void Controller::checkLockByTerms() {
 	const auto data = account().sessionExists()
 		? account().session().termsLocked()
diff --git a/Telegram/SourceFiles/window/window_controller.h b/Telegram/SourceFiles/window/window_controller.h
index f58dc8e77..ce83903bc 100644
--- a/Telegram/SourceFiles/window/window_controller.h
+++ b/Telegram/SourceFiles/window/window_controller.h
@@ -24,12 +24,14 @@ namespace Window {
 class Controller final : public base::has_weak_ptr {
 public:
 	Controller();
+	explicit Controller(not_null<PeerData*> singlePeer);
 	~Controller();
 
 	Controller(const Controller &other) = delete;
 	Controller &operator=(const Controller &other) = delete;
 
 	void showAccount(not_null<Main::Account*> account);
+	[[nodiscard]] PeerData *singlePeer() const;
 
 	[[nodiscard]] not_null<::MainWindow*> widget() {
 		return &_widget;
@@ -100,6 +102,11 @@ public:
 	rpl::lifetime &lifetime();
 
 private:
+	struct CreateArgs {
+		PeerData *singlePeer = nullptr;
+	};
+	explicit Controller(CreateArgs &&args);
+
 	void showBox(
 		object_ptr<Ui::BoxContent> content,
 		Ui::LayerOptions options,
@@ -109,6 +116,7 @@ private:
 	void showTermsDecline();
 	void showTermsDelete();
 
+	PeerData *_singlePeer = nullptr;
 	Main::Account *_account = nullptr;
 	::MainWindow _widget;
 	const std::unique_ptr<Adaptive> _adaptive;