diff --git a/Telegram/SourceFiles/info/info_layer_wrap.cpp b/Telegram/SourceFiles/info/info_layer_wrap.cpp
index 5038a8b4f7..52f16bf3fe 100644
--- a/Telegram/SourceFiles/info/info_layer_wrap.cpp
+++ b/Telegram/SourceFiles/info/info_layer_wrap.cpp
@@ -27,12 +27,18 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 #include "window/section_widget.h"
 #include "window/window_controller.h"
 #include "window/main_window.h"
+#include "auth_session.h"
 #include "styles/style_info.h"
 #include "styles/style_settings.h"
 #include "styles/style_window.h"
 #include "styles/style_boxes.h"
 
 namespace Info {
+namespace {
+
+constexpr auto kThirdSectionInfoTimeoutMs = 1000;
+
+} // namespace
 
 LayerWrap::LayerWrap(
 	not_null<Window::Controller*> controller,
@@ -98,29 +104,40 @@ void LayerWrap::showFinished() {
 
 void LayerWrap::parentResized() {
 	auto parentSize = parentWidget()->size();
-	auto windowWidth = parentSize.width();
-	if (windowWidth < MinimalSupportedWidth()) {
-		hide();
-		setParent(nullptr);
+	auto parentWidth = parentSize.width();
+	if (parentWidth < MinimalSupportedWidth()) {
 		auto localCopy = _controller;
-		localCopy->showSection(
-			MoveMemento(std::move(_content), Wrap::Narrow));
+		auto memento = MoveMemento(std::move(_content), Wrap::Narrow);
 		localCopy->hideSpecialLayer(LayerOption::ForceFast);
+		localCopy->showSection(std::move(memento));
+	} else if (_controller->canShowThirdSectionWithoutResize()) {
+		takeToThirdSection();
 	} else {
 		auto newWidth = qMin(
-			windowWidth - 2 * st::infoMinimalLayerMargin,
+			parentWidth - 2 * st::infoMinimalLayerMargin,
 			st::infoDesiredWidth);
 		resizeToWidth(newWidth);
 	}
 }
 
+bool LayerWrap::takeToThirdSection() {
+	auto localCopy = _controller;
+	auto memento = MoveMemento(std::move(_content), Wrap::Side);
+	localCopy->hideSpecialLayer(LayerOption::ForceFast);
+
+	Auth().data().setThirdSectionInfoEnabled(true);
+	Auth().saveDataDelayed(kThirdSectionInfoTimeoutMs);
+	localCopy->showSection(std::move(memento));
+	return true;
+}
+
 int LayerWrap::MinimalSupportedWidth() {
 	auto minimalMargins = 2 * st::infoMinimalLayerMargin;
 	return st::infoMinimalWidth + minimalMargins;
 }
 
 int LayerWrap::resizeGetHeight(int newWidth) {
-	if (!parentWidget()) {
+	if (!parentWidget() || !_content) {
 		return 0;
 	}
 
diff --git a/Telegram/SourceFiles/info/info_layer_wrap.h b/Telegram/SourceFiles/info/info_layer_wrap.h
index 88bd86e38f..e89c746835 100644
--- a/Telegram/SourceFiles/info/info_layer_wrap.h
+++ b/Telegram/SourceFiles/info/info_layer_wrap.h
@@ -45,6 +45,8 @@ public:
 	void showFinished() override;
 	void parentResized() override;
 
+	bool takeToThirdSection() override;
+
 	static int MinimalSupportedWidth();
 
 protected:
diff --git a/Telegram/SourceFiles/info/info_side_wrap.cpp b/Telegram/SourceFiles/info/info_side_wrap.cpp
index 29494ce7ee..cfc308662c 100644
--- a/Telegram/SourceFiles/info/info_side_wrap.cpp
+++ b/Telegram/SourceFiles/info/info_side_wrap.cpp
@@ -236,6 +236,11 @@ void SideWrap::setCurrentTab(Tab tab) {
 void SideWrap::resizeEvent(QResizeEvent *e) {
 	if (_tabs) {
 		_tabs->resizeToWidth(width());
+		_tabsShadow->setGeometry(
+			0,
+			_tabs->height() - st::lineWidth,
+			width(),
+			st::lineWidth);
 	}
 	if (_content) {
 		_content->setGeometry(contentGeometry());
diff --git a/Telegram/SourceFiles/layerwidget.cpp b/Telegram/SourceFiles/layerwidget.cpp
index 93ed128a27..d611dab923 100644
--- a/Telegram/SourceFiles/layerwidget.cpp
+++ b/Telegram/SourceFiles/layerwidget.cpp
@@ -54,6 +54,7 @@ public:
 	void setLayerBoxes(const QRect &specialLayerBox, const QRect &layerBox);
 	void setCacheImages(QPixmap &&bodyCache, QPixmap &&mainMenuCache, QPixmap &&specialLayerCache, QPixmap &&layerCache);
 	void startAnimation(Action action);
+	void skipAnimation(Action action);
 	void finishAnimation();
 
 	bool animating() const {
@@ -129,6 +130,11 @@ void LayerStackWidget::BackgroundWidget::startAnimation(Action action) {
 	checkIfDone();
 }
 
+void LayerStackWidget::BackgroundWidget::skipAnimation(Action action) {
+	startAnimation(action);
+	finishAnimation();
+}
+
 void LayerStackWidget::BackgroundWidget::checkIfDone() {
 	if (!_wasAnimating || _inPaintEvent || animating()) {
 		return;
@@ -346,37 +352,37 @@ bool LayerWidget::overlaps(const QRect &globalRect) {
 
 void LayerStackWidget::keyPressEvent(QKeyEvent *e) {
 	if (e->key() == Qt::Key_Escape) {
-		hideCurrent();
+		hideCurrent(LayerOption::Animated);
 	}
 }
 
 void LayerStackWidget::mousePressEvent(QMouseEvent *e) {
-	hideCurrent();
+	hideCurrent(LayerOption::Animated);
 }
 
-void LayerStackWidget::hideCurrent() {
-	return currentLayer() ? hideLayers() : hideAll();
+void LayerStackWidget::hideCurrent(LayerOptions options) {
+	return currentLayer() ? hideLayers(options) : hideAll(options);
 }
 
-void LayerStackWidget::hideLayers() {
+void LayerStackWidget::hideLayers(LayerOptions options) {
 	startAnimation([] {}, [this] {
 		clearLayers();
-	}, Action::HideLayer);
+	}, Action::HideLayer, options);
 }
 
-void LayerStackWidget::hideAll() {
+void LayerStackWidget::hideAll(LayerOptions options) {
 	startAnimation([] {}, [this] {
 		clearLayers();
 		clearSpecialLayer();
 		_mainMenu.destroyDelayed();
-	}, Action::HideAll);
+	}, Action::HideAll, options);
 }
 
-void LayerStackWidget::hideTopLayer() {
+void LayerStackWidget::hideTopLayer(LayerOptions options) {
 	if (_specialLayer) {
-		hideLayers();
+		hideLayers(options);
 	} else {
-		hideAll();
+		hideAll(options);
 	}
 }
 
@@ -424,10 +430,10 @@ void LayerStackWidget::onLayerClosed(LayerWidget *layer) {
 	}
 	layer->deleteLater();
 	if (layer == _specialLayer) {
-		hideAll();
+		hideAll(LayerOption::Animated);
 	} else if (layer == currentLayer()) {
 		if (_layers.size() == 1) {
-			hideCurrent();
+			hideCurrent(LayerOption::Animated);
 		} else {
 			if (layer->inFocusChain()) setFocus();
 			layer->hide();
@@ -501,14 +507,25 @@ bool LayerStackWidget::contentOverlapped(const QRect &globalRect) {
 }
 
 template <typename SetupNew, typename ClearOld>
-void LayerStackWidget::startAnimation(SetupNew setupNewWidgets, ClearOld clearOldWidgets, Action action) {
+void LayerStackWidget::startAnimation(
+		SetupNew setupNewWidgets,
+		ClearOld clearOldWidgets,
+		Action action,
+		LayerOptions options) {
 	if (App::quitting()) return;
 
-	setupNewWidgets();
-	setCacheImages();
-	clearOldWidgets();
-	prepareForAnimation();
-	_background->startAnimation(action);
+	if (options & LayerOption::ForceFast) {
+		setupNewWidgets();
+		clearOldWidgets();
+		prepareForAnimation();
+		_background->skipAnimation(action);
+	} else {
+		setupNewWidgets();
+		setCacheImages();
+		clearOldWidgets();
+		prepareForAnimation();
+		_background->startAnimation(action);
+	}
 }
 
 void LayerStackWidget::resizeEvent(QResizeEvent *e) {
@@ -601,7 +618,7 @@ void LayerStackWidget::showSpecialLayer(object_ptr<LayerWidget> layer) {
 	}, [this] {
 		clearLayers();
 		_mainMenu.destroyDelayed();
-	}, Action::ShowSpecialLayer);
+	}, Action::ShowSpecialLayer, LayerOption::Animated);
 }
 
 void LayerStackWidget::showMainMenu() {
@@ -612,7 +629,7 @@ void LayerStackWidget::showMainMenu() {
 	}, [this] {
 		clearLayers();
 		_specialLayer.destroyDelayed();
-	}, Action::ShowMainMenu);
+	}, Action::ShowMainMenu, LayerOption::Animated);
 }
 
 void LayerStackWidget::appendBox(object_ptr<BoxContent> box) {
@@ -637,7 +654,7 @@ LayerWidget *LayerStackWidget::pushBox(object_ptr<BoxContent> box) {
 	} else {
 		startAnimation([] {}, [this] {
 			_mainMenu.destroyDelayed();
-		}, Action::ShowLayer);
+		}, Action::ShowLayer, LayerOption::Animated);
 	}
 
 	return layer.data();
@@ -653,6 +670,12 @@ void LayerStackWidget::prependBox(object_ptr<BoxContent> box) {
 	initChildLayer(layer);
 }
 
+bool LayerStackWidget::takeToThirdSection() {
+	return _specialLayer
+		? _specialLayer->takeToThirdSection()
+		: false;
+}
+
 void LayerStackWidget::clearLayers() {
 	for (auto layer : base::take(_layers)) {
 		layer->setClosing();
@@ -697,7 +720,7 @@ void LayerStackWidget::sendFakeMouseEvent() {
 void LayerStackWidget::onLayerDestroyed(QObject *obj) {
 	if (obj == _specialLayer) {
 		_specialLayer = nullptr;
-		hideAll();
+		hideAll(LayerOption::Animated);
 	} else if (obj == currentLayer()) {
 		_layers.pop_back();
 		if (auto newLayer = currentLayer()) {
@@ -707,7 +730,7 @@ void LayerStackWidget::onLayerDestroyed(QObject *obj) {
 				showFinished();
 			}
 		} else if (!_specialLayer) {
-			hideAll();
+			hideAll(LayerOption::Animated);
 		}
 	} else {
 		for (auto i = _layers.begin(), e = _layers.end(); i != e; ++i) {
diff --git a/Telegram/SourceFiles/layerwidget.h b/Telegram/SourceFiles/layerwidget.h
index 0e8375e95f..6537314390 100644
--- a/Telegram/SourceFiles/layerwidget.h
+++ b/Telegram/SourceFiles/layerwidget.h
@@ -52,6 +52,9 @@ public:
 	void setResizedCallback(base::lambda<void()> callback) {
 		_resizedCallback = std::move(callback);
 	}
+	virtual bool takeToThirdSection() {
+		return false;
+	}
 
 protected:
 	void closeLayer() {
@@ -96,15 +99,16 @@ public:
 	void showMainMenu();
 	void appendBox(object_ptr<BoxContent> box);
 	void prependBox(object_ptr<BoxContent> box);
+	bool takeToThirdSection();
 
 	bool canSetFocus() const;
 	void setInnerFocus();
 
 	bool contentOverlapped(const QRect &globalRect);
 
-	void hideLayers();
-	void hideAll();
-	void hideTopLayer();
+	void hideLayers(LayerOptions options);
+	void hideAll(LayerOptions options);
+	void hideTopLayer(LayerOptions options);
 
 	bool layerShown() const;
 
@@ -123,7 +127,7 @@ private slots:
 private:
 	LayerWidget *pushBox(object_ptr<BoxContent> box);
 	void showFinished();
-	void hideCurrent();
+	void hideCurrent(LayerOptions options);
 
 	enum class Action {
 		ShowMainMenu,
@@ -133,7 +137,11 @@ private:
 		HideAll,
 	};
 	template <typename SetupNew, typename ClearOld>
-	void startAnimation(SetupNew setupNewWidgets, ClearOld clearOldWidgets, Action action);
+	void startAnimation(
+		SetupNew setupNewWidgets,
+		ClearOld clearOldWidgets,
+		Action action,
+		LayerOptions options);
 
 	void prepareForAnimation();
 	void animationDone();
diff --git a/Telegram/SourceFiles/mainwidget.cpp b/Telegram/SourceFiles/mainwidget.cpp
index 62d876403c..76c7ff77fc 100644
--- a/Telegram/SourceFiles/mainwidget.cpp
+++ b/Telegram/SourceFiles/mainwidget.cpp
@@ -3417,7 +3417,8 @@ void MainWidget::updateControlsGeometry() {
 		_dialogs->stopWidthAnimation();
 	}
 	if (Adaptive::ThreeColumn()) {
-		if (!_thirdSection) {
+		if (!_thirdSection
+			&& !_controller->takeThirdSectionFromLayer()) {
 			if (Auth().data().tabbedSelectorSectionEnabled()) {
 				_history->pushTabbedSelectorToThirdSection();
 			} else if (Auth().data().thirdSectionInfoEnabled()) {
diff --git a/Telegram/SourceFiles/mainwindow.cpp b/Telegram/SourceFiles/mainwindow.cpp
index d0dd228503..f358007b26 100644
--- a/Telegram/SourceFiles/mainwindow.cpp
+++ b/Telegram/SourceFiles/mainwindow.cpp
@@ -364,7 +364,7 @@ void MainWindow::destroyLayerDelayed() {
 
 void MainWindow::ui_hideSettingsAndLayer(LayerOptions options) {
 	if (_layerBg) {
-		_layerBg->hideAll();
+		_layerBg->hideAll(options);
 		if (options & LayerOption::ForceFast) {
 			destroyLayerDelayed();
 		}
@@ -420,7 +420,7 @@ void MainWindow::ui_showBox(
 		}
 	} else {
 		if (_layerBg) {
-			_layerBg->hideTopLayer();
+			_layerBg->hideTopLayer(options);
 			if ((options & LayerOption::ForceFast) && !_layerBg->layerShown()) {
 				destroyLayerDelayed();
 			}
@@ -721,6 +721,10 @@ void MainWindow::layerFinishedHide(LayerStackWidget *was) {
 	}
 }
 
+bool MainWindow::takeThirdSectionFromLayer() {
+	return _layerBg ? _layerBg->takeToThirdSection() : false;
+}
+
 void MainWindow::fixOrder() {
 	if (_layerBg) _layerBg->raise();
 	if (_mediaPreview) _mediaPreview->raise();
diff --git a/Telegram/SourceFiles/mainwindow.h b/Telegram/SourceFiles/mainwindow.h
index 4356b8bf40..c598f1a03a 100644
--- a/Telegram/SourceFiles/mainwindow.h
+++ b/Telegram/SourceFiles/mainwindow.h
@@ -104,6 +104,7 @@ public:
 	void noIntro(Intro::Widget *was);
 	void noLayerStack(LayerStackWidget *was);
 	void layerFinishedHide(LayerStackWidget *was);
+	bool takeThirdSectionFromLayer();
 
 	void checkHistoryActivation();
 
diff --git a/Telegram/SourceFiles/window/top_bar_widget.cpp b/Telegram/SourceFiles/window/top_bar_widget.cpp
index a83719dce7..c34a928a22 100644
--- a/Telegram/SourceFiles/window/top_bar_widget.cpp
+++ b/Telegram/SourceFiles/window/top_bar_widget.cpp
@@ -44,7 +44,10 @@ constexpr auto kThirdSectionInfoTimeoutMs = 1000;
 
 } // namespace
 
-TopBarWidget::TopBarWidget(QWidget *parent, not_null<Window::Controller*> controller) : RpWidget(parent)
+TopBarWidget::TopBarWidget(
+	QWidget *parent,
+	not_null<Window::Controller*> controller)
+: RpWidget(parent)
 , _controller(controller)
 , _clearSelection(this, langFactory(lng_selected_clear), st::topBarClearButton)
 , _forward(this, langFactory(lng_selected_forward), st::defaultActiveButton)
diff --git a/Telegram/SourceFiles/window/window_controller.cpp b/Telegram/SourceFiles/window/window_controller.cpp
index f4a0b0b315..6bace5dda2 100644
--- a/Telegram/SourceFiles/window/window_controller.cpp
+++ b/Telegram/SourceFiles/window/window_controller.cpp
@@ -159,6 +159,15 @@ bool Controller::canShowThirdSection() const {
 	return window()->canExtendWidthBy(extendBy);
 }
 
+bool Controller::canShowThirdSectionWithoutResize() const {
+	auto currentWidth = computeColumnLayout().bodyWidth;
+	return currentWidth >= minimalThreeColumnWidth();
+}
+
+bool Controller::takeThirdSectionFromLayer() {
+	return App::wnd()->takeThirdSectionFromLayer();
+}
+
 void Controller::resizeForThirdSection() {
 	auto layout = computeColumnLayout();
 	if (layout.windowLayout == Adaptive::WindowLayout::ThreeColumn) {
diff --git a/Telegram/SourceFiles/window/window_controller.h b/Telegram/SourceFiles/window/window_controller.h
index 05053a3dd8..cb920bebbf 100644
--- a/Telegram/SourceFiles/window/window_controller.h
+++ b/Telegram/SourceFiles/window/window_controller.h
@@ -85,6 +85,8 @@ public:
 	int dialogsSmallColumnWidth() const;
 	void updateColumnLayout();
 	bool canShowThirdSection() const;
+	bool canShowThirdSectionWithoutResize() const;
+	bool takeThirdSectionFromLayer();
 	void resizeForThirdSection();
 	void closeThirdSection();
 	void showSection(