diff --git a/src/tuxclocker-qt/MainWindow.cpp b/src/tuxclocker-qt/MainWindow.cpp
index 086b779..bb539bd 100644
--- a/src/tuxclocker-qt/MainWindow.cpp
+++ b/src/tuxclocker-qt/MainWindow.cpp
@@ -1,4 +1,9 @@
+#include "MainWindow.hpp"
+
 #include <DBusTypes.hpp>
+#include <DeviceBrowser.hpp>
+#include <DeviceModel.hpp>
+#include <DeviceModelDelegate.hpp>
 #include <QDBusConnection>
 #include <QDBusInterface>
 #include <QDBusMetaType>
@@ -10,10 +15,6 @@
 #include <QVector>
 #include <Tree.hpp>
 
-#include <DeviceModel.hpp>
-#include <DeviceModelDelegate.hpp>
-#include "MainWindow.hpp"
-
 namespace TCDBus = TuxClocker::DBus;
 
 using namespace TuxClocker;
@@ -48,9 +49,12 @@ MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent) {
 	
 	auto root = flatTree.toTree(flatTree);
 	
-	auto view = new QTreeView;
+	/*auto view = new QTreeView;
 	view->setItemDelegate(new DeviceModelDelegate);
-	auto model = new DeviceModel(root);
 	view->setModel(model);
-	setCentralWidget(view);
+	setCentralWidget(view);*/
+	
+	auto model = new DeviceModel(root);
+	auto browser = new DeviceBrowser(*model);
+	setCentralWidget(browser);
 }
diff --git a/src/tuxclocker-qt/data/AssignableItem.cpp b/src/tuxclocker-qt/data/AssignableItem.cpp
new file mode 100644
index 0000000..8b6a067
--- /dev/null
+++ b/src/tuxclocker-qt/data/AssignableItem.cpp
@@ -0,0 +1,16 @@
+#include "AssignableItem.hpp"
+
+Q_DECLARE_METATYPE(AssignableItemData)
+
+void AssignableItem::setData(const QVariant &v, int role) {
+	if (role == DeviceModel::AssignableRole) {
+		auto data = v.value<AssignableItemData>().value();
+		// Value is empty
+		if (data.isValid()) {
+			QVariant vr;
+			vr.setValue(data);
+			emit assignableDataChanged(vr);
+		}
+	}
+	QStandardItem::setData(v, role);
+}
diff --git a/src/tuxclocker-qt/data/AssignableItem.hpp b/src/tuxclocker-qt/data/AssignableItem.hpp
index bf5ec35..36cea71 100644
--- a/src/tuxclocker-qt/data/AssignableItem.hpp
+++ b/src/tuxclocker-qt/data/AssignableItem.hpp
@@ -1,6 +1,6 @@
 #pragma once
 
-//#include "DeviceModel.hpp"
+#include "DeviceModel.hpp"
 
 #include <QObject>
 #include <QStandardItem>
@@ -12,11 +12,14 @@ class AssignableItem : public QObject, public QStandardItem {
 public:
 	AssignableItem(QObject *parent = nullptr) : QObject(parent), QStandardItem() {
 	}
-	void setData(const QVariant &v, int role = Qt::UserRole + 1) {
-		//if (role == DeviceModel::AssignableRole) ;
-	}
+	bool committal() {return m_committed;}
+	// Whether or not the set value shall be applied. Doesn't reset or change it.
+	void setCommittal(bool on) {m_committed = on;}
+	void setData(const QVariant &v, int role = Qt::UserRole + 1);
 signals:
 	void assignableDataChanged(QVariant value);
 private:
 	Q_OBJECT
+	
+	bool m_committed = false;
 };
diff --git a/src/tuxclocker-qt/data/AssignableItemData.hpp b/src/tuxclocker-qt/data/AssignableItemData.hpp
index 80b0a88..0c13ed1 100644
--- a/src/tuxclocker-qt/data/AssignableItemData.hpp
+++ b/src/tuxclocker-qt/data/AssignableItemData.hpp
@@ -12,6 +12,9 @@ public:
 		m_enabled = false;
 	}
 	TC::Device::AssignableInfo assignableInfo() {return m_info;}
+	bool committal() {return m_enabled;}
+	// Whether or not the set value shall be applied. Doesn't reset or change it.
+	void setCommittal(bool on) {m_enabled = on;}
 	void setValue(QVariant v) {m_targetValue = v;}
 	QVariant value() {return m_targetValue;}
 private:
@@ -19,4 +22,3 @@ private:
 	TC::Device::AssignableInfo m_info;
 	QVariant m_targetValue;
 };
-Q_DECLARE_METATYPE(TC::Device::AssignableInfo)
diff --git a/src/tuxclocker-qt/data/AssignableProxy.cpp b/src/tuxclocker-qt/data/AssignableProxy.cpp
new file mode 100644
index 0000000..901a21b
--- /dev/null
+++ b/src/tuxclocker-qt/data/AssignableProxy.cpp
@@ -0,0 +1,43 @@
+#include "AssignableProxy.hpp"
+
+#include <DBusTypes.hpp>
+#include <QDBusReply>
+#include <QDBusMessage>
+
+namespace TCD = TuxClocker::DBus;
+
+using namespace TuxClocker::Device;
+
+Q_DECLARE_METATYPE(TCD::Result<int>)
+
+AssignableProxy::AssignableProxy(QString path, QDBusConnection conn,
+		QObject *parent) : QObject(parent) {
+	qDBusRegisterMetaType<TCD::Result<int>>();
+	m_iface = new QDBusInterface("org.tuxclocker", 
+		path, "org.tuxclocker.Assignable", conn, this);
+}
+	
+void AssignableProxy::apply() {
+	// A value hasn't been set yet
+	if (m_value.isNull())
+		return;
+	
+	// Use QDBusVariant since otherwise tries to call with the wrong signature
+	QDBusVariant dv(m_value);
+	QVariant v;
+	v.setValue(dv);
+	QDBusReply<TCD::Result<int>> reply = m_iface->call("assign", v);
+	if (reply.isValid()) {
+		qDebug() << reply.value().error << reply.value().value;
+		
+		TCD::Result<AssignmentError> ar{reply.value().error,
+			static_cast<AssignmentError>(reply.value().value)};
+		qDebug("Success!");
+		emit applied(ar.toOptional());
+	}
+	// TODO: Maybe indicate that calling dbus errored out
+	else 
+		emit applied(AssignmentError::UnknownError);
+	// Indicate that there's no pending value to applied by making value invalid
+	m_value = QVariant();
+}
diff --git a/src/tuxclocker-qt/data/AssignableProxy.hpp b/src/tuxclocker-qt/data/AssignableProxy.hpp
new file mode 100644
index 0000000..ce82f46
--- /dev/null
+++ b/src/tuxclocker-qt/data/AssignableProxy.hpp
@@ -0,0 +1,28 @@
+#pragma once
+
+// Acts as a buffer for unapplied assignables and applies them asynchronously
+
+#include <Device.hpp>
+#include <memory>
+#include <QDebug>
+#include <QDBusConnection>
+#include <QDBusInterface>
+#include <QObject>
+#include <variant>
+
+namespace TC = TuxClocker;
+
+class AssignableProxy : public QObject {
+public:
+	AssignableProxy(QString path, QDBusConnection conn,
+		QObject *parent = nullptr);
+	void apply();
+	void setValue(QVariant v) {m_value = v;}
+signals:
+	void applied(std::optional<TC::Device::AssignmentError>);
+private:
+	Q_OBJECT
+	
+	QVariant m_value;
+	QDBusInterface *m_iface;
+};
diff --git a/src/tuxclocker-qt/data/DeviceModel.cpp b/src/tuxclocker-qt/data/DeviceModel.cpp
index 8a97497..b60839a 100644
--- a/src/tuxclocker-qt/data/DeviceModel.cpp
+++ b/src/tuxclocker-qt/data/DeviceModel.cpp
@@ -1,5 +1,12 @@
 #include "DeviceModel.hpp"
 
+#include "AssignableItem.hpp"
+#include "AssignableProxy.hpp"
+#include <QDebug>
+#include <QVariantAnimation>
+
+using namespace mpark::patterns;
+
 Q_DECLARE_METATYPE(AssignableItemData)
 Q_DECLARE_METATYPE(TCDBus::Enumeration)
 Q_DECLARE_METATYPE(TCDBus::Range)
@@ -16,10 +23,12 @@ DeviceModel::DeviceModel(TC::TreeNode<TCDBus::DeviceNode> root, QObject *parent)
 			
 	setColumnCount(2);
 	
-	std::function<void(TC::TreeNode<TCDBus::DeviceNode> node, QStandardItem*)> traverse;
-	traverse = [&traverse](auto node, auto item) {
+	std::function<void(TC::TreeNode<TCDBus::DeviceNode> node,
+		QStandardItem*)> traverse;
+	traverse = [&traverse, this](auto node, auto item) {
 		auto conn = QDBusConnection::systemBus();
-		QDBusInterface nodeIface("org.tuxclocker", node.value().path, "org.tuxclocker.Node", conn);
+		QDBusInterface nodeIface("org.tuxclocker",
+			node.value().path,"org.tuxclocker.Node", conn);
 		auto nodeName = nodeIface.property("name").toString();
 		
 		QList<QStandardItem*> rowItems;
@@ -40,14 +49,44 @@ DeviceModel::DeviceModel(TC::TreeNode<TCDBus::DeviceNode> root, QObject *parent)
 			auto d_arg = qvariant_cast<QDBusArgument>(a_info);
 			switch (d_arg.currentType()) {
 				case QDBusArgument::StructureType: {
-					auto ifaceItem = new QStandardItem;
+					auto ifaceItem = new AssignableItem;
+					ifaceItem->setEditable(true);
+					//ifaceItem->setCheckable(true);
+					auto proxy = new AssignableProxy(node.value().path, conn, this);
+					connect(ifaceItem, &AssignableItem::assignableDataChanged,
+							[=](QVariant v) {
+						proxy->setValue(v);
+						ifaceItem->setData(unappliedColor(), Qt::BackgroundRole);
+					});
+					
+					connect(proxy, &AssignableProxy::applied, [=](auto err) {
+						// Fade out result color
+						auto startColor = (err.has_value()) ? errorColor()
+							: successColor();
+						auto anim = new QVariantAnimation;
+						anim->setDuration(fadeOutTime());
+						anim->setStartValue(startColor);
+						anim->setEndValue(QPalette().color(QPalette::Base));
+						
+						connect(anim, &QVariantAnimation::valueChanged, [=](QVariant v) {
+							QVariant iv;
+							iv.setValue(v.value<QColor>());
+							ifaceItem->setData(iv, Qt::BackgroundRole);
+						});
+						anim->start(QAbstractAnimation::DeleteWhenStopped);
+					});
+					
+					connect(this, &DeviceModel::changesApplied, [=] {
+						proxy->apply();
+					});
+
 					TCDBus::Range r;
 					d_arg >> r;
 					QVariant v;
 					AssignableItemData data(r.toAssignableInfo());
 					v.setValue(data);
 					ifaceItem->setData(v, Role::AssignableRole);
-					ifaceItem->setText(r.min.variant().toString());
+					//ifaceItem->setText(r.min.variant().toString());
 					rowItems.append(ifaceItem);
 					break;
 				}
diff --git a/src/tuxclocker-qt/data/DeviceModel.hpp b/src/tuxclocker-qt/data/DeviceModel.hpp
index 36baaf8..0493b11 100644
--- a/src/tuxclocker-qt/data/DeviceModel.hpp
+++ b/src/tuxclocker-qt/data/DeviceModel.hpp
@@ -1,6 +1,6 @@
 #pragma once
 
-//#include "AssignableItem.hpp"
+#include "AssignableItem.hpp"
 #include "AssignableItemData.hpp"
 
 #include <DBusTypes.hpp>
@@ -10,6 +10,7 @@
 #include <QDBusConnection>
 #include <QDBusInterface>
 #include <QStandardItemModel>
+#include <QPalette>
 
 namespace p = mpark::patterns;
 namespace TC = TuxClocker;
@@ -32,4 +33,17 @@ public:
 	enum class FilterFlag {
 		
 	};
+	// For decoupling AssignableItems created in the model
+	void applyChanges() {emit changesApplied();}
+signals:
+	void changesApplied();
+private:
+	Q_OBJECT
+	
+	constexpr int fadeOutTime() {return 5000;}
+	constexpr int transparency() {return 120;}
+	// Colors for items
+	QColor errorColor() {return QColor(255, 0, 0, transparency());} // red
+	QColor unappliedColor() {return QColor(255, 255, 0, transparency());} // yellow
+	QColor successColor() {return QColor(0, 255, 0, transparency());} // green
 };
diff --git a/src/tuxclocker-qt/data/DeviceModelDelegate.cpp b/src/tuxclocker-qt/data/DeviceModelDelegate.cpp
index c6bd897..b3c6eed 100644
--- a/src/tuxclocker-qt/data/DeviceModelDelegate.cpp
+++ b/src/tuxclocker-qt/data/DeviceModelDelegate.cpp
@@ -56,3 +56,15 @@ void DeviceModelDelegate::setModelData(QWidget *editor,
 		model->setData(index, v, DeviceModel::AssignableRole);
 	}
 }
+
+void DeviceModelDelegate::updateEditorGeometry(QWidget *editor,
+		const QStyleOptionViewItem &option, const QModelIndex&) const {
+	// Why do I need to override this to perform such a basic task?
+	editor->setGeometry(option.rect);
+}
+
+/*void DeviceModelDelegate::drawCheck(QPainter *painter,
+		const QStyleOptionViewItem &option, const QRect &rect,
+		Qt::CheckState state) const {
+	QStyledItemDelegate::drawCheck(painter, option, rect, state)
+}*/
diff --git a/src/tuxclocker-qt/data/DeviceModelDelegate.hpp b/src/tuxclocker-qt/data/DeviceModelDelegate.hpp
index 2fc6def..ac91012 100644
--- a/src/tuxclocker-qt/data/DeviceModelDelegate.hpp
+++ b/src/tuxclocker-qt/data/DeviceModelDelegate.hpp
@@ -2,13 +2,14 @@
 
 #include <QStyledItemDelegate>
 
+// TODO: align checkbox to the right
 class DeviceModelDelegate : public QStyledItemDelegate {
 public:
 	DeviceModelDelegate(QObject *parent = nullptr);
 	QWidget *createEditor(QWidget *parent, const QStyleOptionViewItem &option,
 		const QModelIndex &index) const;
-	//void updateEditorGeometry(QWidget *editor, const QStyleOptionViewItem &option,
-	//	const QModelIndex &index) const;
+	void updateEditorGeometry(QWidget *editor, const QStyleOptionViewItem &option,
+		const QModelIndex &index) const;
 	void setEditorData(QWidget *editor, const QModelIndex &index) const;
 	void setModelData(QWidget *editor, QAbstractItemModel *model,
 		const QModelIndex &index) const;
diff --git a/src/tuxclocker-qt/meson.build b/src/tuxclocker-qt/meson.build
index 825d320..744463d 100644
--- a/src/tuxclocker-qt/meson.build
+++ b/src/tuxclocker-qt/meson.build
@@ -2,12 +2,17 @@ qt5 = import('qt5')
 qt5_dep = dependency('qt5', modules: ['DBus', 'Charts', 'Widgets'])
 
 moc_files = qt5.preprocess(moc_headers: ['MainWindow.hpp',
-		'data/AssignableItem.hpp'],
+		'data/AssignableItem.hpp',
+		'data/AssignableProxy.hpp',
+		'data/DeviceModel.hpp'],
 	dependencies: qt5_dep)
 
 sources = ['main.cpp',
+	'data/AssignableItem.cpp',
+	'data/AssignableProxy.cpp',
 	'data/DeviceModel.cpp',
 	'data/DeviceModelDelegate.cpp',
+	'widgets/DeviceTreeView.cpp',
 	'MainWindow.cpp']
 
 local_incdir = include_directories(['data',
@@ -17,6 +22,7 @@ local_incdir = include_directories(['data',
 executable('tuxclocker-qt',
 	moc_files,
 	sources,
+	override_options : ['cpp_std=c++17'],
 	dependencies: qt5_dep,
 	include_directories: [incdir, local_incdir],
 	install: true)
diff --git a/src/tuxclocker-qt/widgets/DeviceBrowser.hpp b/src/tuxclocker-qt/widgets/DeviceBrowser.hpp
new file mode 100644
index 0000000..0d54cff
--- /dev/null
+++ b/src/tuxclocker-qt/widgets/DeviceBrowser.hpp
@@ -0,0 +1,32 @@
+#pragma once
+
+#include <DeviceTreeView.hpp>
+#include <DeviceModel.hpp>
+#include <QGridLayout>
+#include <QPushButton>
+#include <QWidget>
+
+// Class for viewing/editing the main tuxclocker tree
+class DeviceBrowser : public QWidget {
+public:
+	DeviceBrowser(DeviceModel &model,
+			QWidget *parent = nullptr) : QWidget(parent), m_deviceModel(model) {
+		m_layout = new QGridLayout(this);
+		m_treeView = new DeviceTreeView(model);
+		m_apply = new QPushButton("Apply changes");
+		m_apply->setEnabled(true);
+		
+		connect(m_apply, &QPushButton::pressed, &m_deviceModel, &DeviceModel::applyChanges);
+		
+		m_layout->addWidget(m_treeView, 0, 0);
+		m_layout->addWidget(m_apply, 1, 0);
+		
+		setLayout(m_layout);
+	}
+	
+private:
+	DeviceModel &m_deviceModel;
+	DeviceTreeView *m_treeView;
+	QPushButton *m_apply;
+	QGridLayout *m_layout;
+};
diff --git a/src/tuxclocker-qt/widgets/DeviceTreeView.cpp b/src/tuxclocker-qt/widgets/DeviceTreeView.cpp
new file mode 100644
index 0000000..dc34643
--- /dev/null
+++ b/src/tuxclocker-qt/widgets/DeviceTreeView.cpp
@@ -0,0 +1,39 @@
+#include "DeviceTreeView.hpp"
+
+#include <QCheckBox>
+#include <QDebug>
+
+Q_DECLARE_METATYPE(AssignableItemData)
+
+DeviceTreeView::DeviceTreeView(DeviceModel &model, QWidget *parent)
+		: QTreeView(parent), m_deviceModel(model) {
+	setContextMenuPolicy(Qt::CustomContextMenu);
+	connect(this, &QTreeView::customContextMenuRequested, [this](QPoint point) {
+		auto index = indexAt(point);
+		auto data = index.data(DeviceModel::AssignableRole);
+		QMenu menu;
+		if (data.canConvert<AssignableItemData>()) {
+			auto a_data = data.value<AssignableItemData>();
+			QCheckBox commitCb("Commit");
+			auto commitAct = new QWidgetAction(&menu);
+			commitAct->setDefaultWidget(&commitCb);
+			commitCb.setChecked(a_data.committal());
+			connect(&commitCb, &QCheckBox::toggled, [&](bool toggled) {
+				a_data.setCommittal(toggled);
+			});
+			// Write the committal value to the model only on menu close
+			connect(&menu, &QMenu::aboutToHide, [&] {
+				qDebug() << a_data.committal();
+				QVariant v;
+				v.setValue(a_data);
+				m_deviceModel.setData(index, v, DeviceModel::AssignableRole);
+			});
+			menu.addAction(commitAct);
+			menu.exec(QCursor::pos());
+		}
+	});
+	m_delegate = new DeviceModelDelegate(this);
+	
+	setItemDelegate(m_delegate);
+	setModel(&m_deviceModel);
+}
diff --git a/src/tuxclocker-qt/widgets/DeviceTreeView.hpp b/src/tuxclocker-qt/widgets/DeviceTreeView.hpp
new file mode 100644
index 0000000..4447aa2
--- /dev/null
+++ b/src/tuxclocker-qt/widgets/DeviceTreeView.hpp
@@ -0,0 +1,19 @@
+#pragma once
+
+#include <AssignableItemData.hpp>
+#include <DeviceModel.hpp>
+#include <DeviceModelDelegate.hpp>
+#include <QMenu>
+#include <QTreeView>
+#include <QWidgetAction>
+
+// Class for handling menus on DeviceModel
+class DeviceTreeView : public QTreeView {
+public:
+	DeviceTreeView(DeviceModel &model, QWidget *parent = nullptr);
+	// Accessor method for connecting everything in the browser
+	const DeviceModel &deviceModel() {return m_deviceModel;}
+private:
+	DeviceModel &m_deviceModel;
+	DeviceModelDelegate *m_delegate;
+};