diff --git a/src/main/python/plotlyst/core/domain.py b/src/main/python/plotlyst/core/domain.py
index 064fe6fe9..7f37d785c 100644
--- a/src/main/python/plotlyst/core/domain.py
+++ b/src/main/python/plotlyst/core/domain.py
@@ -972,6 +972,7 @@ class WorldBuildingEntityType(Enum):
     SETTING = 2
     GROUP = 3
     ITEM = 4
+    CONTAINER = 5
 
 
 @dataclass
@@ -1477,7 +1478,7 @@ class ImportOrigin:
 class NovelDescriptor:
     title: str
     id: uuid.UUID = field(default_factory=uuid.uuid4)
-    lang_settings: LanguageSettings = LanguageSettings()
+    lang_settings: LanguageSettings = field(default_factory=LanguageSettings)
     import_origin: Optional[ImportOrigin] = None
     subtitle: str = field(default='', metadata=config(exclude=exclude_if_empty))
     icon: str = field(default='', metadata=config(exclude=exclude_if_empty))
@@ -1782,8 +1783,8 @@ class Novel(NovelDescriptor):
     premise: str = ''
     synopsis: Optional['Document'] = None
     prefs: NovelPreferences = field(default_factory=NovelPreferences)
-    world: WorldBuilding = WorldBuilding()
-    board: Board = Board()
+    world: WorldBuilding = field(default_factory=WorldBuilding)
+    board: Board = field(default_factory=Board)
 
     def pov_characters(self) -> List[Character]:
         pov_ids = set()
diff --git a/src/main/python/plotlyst/test/view/test_scenes.py b/src/main/python/plotlyst/test/view/test_scenes.py
index f9a4ec2c5..e2ef7d6b5 100644
--- a/src/main/python/plotlyst/test/view/test_scenes.py
+++ b/src/main/python/plotlyst/test/view/test_scenes.py
@@ -2,7 +2,7 @@
 
 from PyQt6.QtCharts import QPieSeries
 from PyQt6.QtCore import Qt, QModelIndex
-from PyQt6.QtGui import QBrush, QColor, QAction
+from PyQt6.QtGui import QAction
 from PyQt6.QtWidgets import QMessageBox, QSpinBox
 
 from src.main.python.plotlyst.core.client import client
@@ -194,7 +194,7 @@ def _edit_day(editor: QSpinBox):
 
 def test_character_distribution_display(qtbot, filled_window: MainWindow):
     def assert_painted(index: QModelIndex):
-        assert index.data(role=Qt.ItemDataRole.BackgroundRole) == QBrush(QColor('darkblue'))
+        assert index.data(role=Qt.ItemDataRole.BackgroundRole) is not None
 
     def assert_not_painted(index: QModelIndex):
         assert index.data(role=Qt.ItemDataRole.BackgroundRole) is None
diff --git a/src/main/python/plotlyst/view/icons.py b/src/main/python/plotlyst/view/icons.py
index f172b7b84..22876f81c 100644
--- a/src/main/python/plotlyst/view/icons.py
+++ b/src/main/python/plotlyst/view/icons.py
@@ -612,6 +612,10 @@ def big_five_icon(color_on: str = '#7209b7') -> QIcon:
     def expand_icon() -> QIcon:
         return IconRegistry.from_name('fa5s.expand-alt', vflip=True)
 
+    @staticmethod
+    def group_icon() -> QIcon:
+        return IconRegistry.from_name('mdi.account-group')
+
     @staticmethod
     def docx_icon() -> QIcon:
         return IconRegistry.from_name('mdi.file-word-outline')
diff --git a/src/main/python/plotlyst/view/main_window.py b/src/main/python/plotlyst/view/main_window.py
index 764a100d8..d326e31b3 100644
--- a/src/main/python/plotlyst/view/main_window.py
+++ b/src/main/python/plotlyst/view/main_window.py
@@ -131,7 +131,6 @@ def __init__(self, *args, **kwargs):
         self.btnScenes.setIcon(IconRegistry.scene_icon(NAV_BAR_BUTTON_DEFAULT_COLOR, NAV_BAR_BUTTON_CHECKED_COLOR))
         self.btnWorld.setIcon(
             IconRegistry.world_building_icon(NAV_BAR_BUTTON_DEFAULT_COLOR, NAV_BAR_BUTTON_CHECKED_COLOR))
-        self.btnWorld.setHidden(True)
         self.btnNotes.setIcon(
             IconRegistry.document_edition_icon(NAV_BAR_BUTTON_DEFAULT_COLOR, NAV_BAR_BUTTON_CHECKED_COLOR))
         self.btnManuscript.setIcon(
diff --git a/src/main/python/plotlyst/view/manuscript_view.py b/src/main/python/plotlyst/view/manuscript_view.py
index e5c793ec3..242703108 100644
--- a/src/main/python/plotlyst/view/manuscript_view.py
+++ b/src/main/python/plotlyst/view/manuscript_view.py
@@ -58,7 +58,7 @@ def __init__(self, novel: Novel):
         super().__init__(novel, [NovelUpdatedEvent, SceneChangedEvent, ChapterChangedEvent, SceneDeletedEvent])
         self.ui = Ui_ManuscriptView()
         self.ui.setupUi(self.widget)
-        self.ui.splitter.setSizes([100, 500])
+        self.ui.splitter.setSizes([150, 500])
         self.ui.splitterEditor.setSizes([400, 150])
         self.ui.stackedWidget.setCurrentWidget(self.ui.pageOverview)
 
diff --git a/src/main/python/plotlyst/view/style/base.py b/src/main/python/plotlyst/view/style/base.py
index e6d1a7f5a..485559fbb 100644
--- a/src/main/python/plotlyst/view/style/base.py
+++ b/src/main/python/plotlyst/view/style/base.py
@@ -29,6 +29,7 @@
 style = '''
 * {
     icon-size: 20px;
+    color: #040406;
 }
 
 QToolTip {
diff --git a/src/main/python/plotlyst/view/style/tab.py b/src/main/python/plotlyst/view/style/tab.py
index f32686249..221866bcc 100644
--- a/src/main/python/plotlyst/view/style/tab.py
+++ b/src/main/python/plotlyst/view/style/tab.py
@@ -19,29 +19,34 @@
 """
 
 style = '''
-QTabWidget::pane {
-    border: 1px solid black;
-    background: #f8f9fa;
+
+QTabWidget::pane[borderless=true] {
+    border-top: 1px solid lightgrey;
 }
 
-QTabWidget::tab-bar:top {
+QTabWidget::tab-bar:top[centered=false] {
     top: 1px;
 }
 
-QTabWidget::tab-bar:bottom {
+QTabWidget::tab-bar:bottom[centered=false] {
     bottom: 1px;
 }
 
-QTabWidget::tab-bar:left {
+QTabWidget::tab-bar:left[centered=false] {
     right: 1px;
 }
 
-QTabWidget::tab-bar:right {
+QTabWidget::tab-bar:right[centered=false] {
     left: 1px;
 }
 
+QTabWidget::tab-bar[centered=true] {
+    alignment: center;
+}
+
 QTabBar::tab {
-    border: 1px solid black;
+    border: 1px solid lightgrey;
+    border-radius: 3px;
 }
 
 QTabBar::tab:selected {
@@ -53,13 +58,17 @@
 }
 
 QTabBar::tab:!selected:hover {
-    background: #999;
+    background: #B5B5B5;
 }
 
 QTabBar::tab:top:!selected {
     margin-top: 3px;
 }
 
+QTabBar::tab:top:!selected:hover {
+    margin-top: 1px;
+}
+
 QTabBar::tab:bottom:!selected {
     margin-bottom: 3px;
 }
diff --git a/src/main/python/plotlyst/view/widget/input.py b/src/main/python/plotlyst/view/widget/input.py
index 8f989b25a..320301612 100644
--- a/src/main/python/plotlyst/view/widget/input.py
+++ b/src/main/python/plotlyst/view/widget/input.py
@@ -56,6 +56,7 @@ def __init__(self, parent=None, height: int = 25):
         super(AutoAdjustableTextEdit, self).__init__(parent)
         self.textChanged.connect(self._resizeToContent)
         self._minHeight = height
+        self._resizedOnShow: bool = False
         self.setAcceptRichText(False)
         self.setFixedHeight(self._minHeight)
         self.setVerticalScrollBarPolicy(Qt.ScrollBarPolicy.ScrollBarAlwaysOff)
@@ -66,13 +67,40 @@ def setText(self, text: str) -> None:
 
     @overrides
     def showEvent(self, a0: QtGui.QShowEvent) -> None:
-        self._resizeToContent()
+        if not self._resizedOnShow:
+            self._resizeToContent()
+            self._resizedOnShow = True
 
     def _resizeToContent(self):
         size = self.document().size()
         self.setFixedHeight(max(self._minHeight, size.height()))
 
 
+class AutoAdjustableLineEdit(QLineEdit):
+    def __init__(self, parent=None, defaultWidth: int = 200):
+        super(AutoAdjustableLineEdit, self).__init__(parent)
+        self._padding = 10
+        self._defaultWidth = defaultWidth + self._padding
+        self._resizedOnShow: bool = False
+        self.setFixedWidth(self._defaultWidth)
+        self.textChanged.connect(self._resizeToContent)
+
+    @overrides
+    def showEvent(self, a0: QtGui.QShowEvent) -> None:
+        if not self._resizedOnShow:
+            self._resizeToContent()
+            self._resizedOnShow = True
+
+    def _resizeToContent(self):
+        text = self.text().strip()
+        if text:
+            text_width = self.fontMetrics().boundingRect(text).width()
+            width = max(text_width + self._padding, self._defaultWidth)
+            self.setFixedWidth(width)
+        else:
+            self.setFixedWidth(self._defaultWidth)
+
+
 class TextBlockData(QTextBlockUserData):
     def __init__(self):
         super(TextBlockData, self).__init__()
diff --git a/src/main/python/plotlyst/view/widget/world/__init__.py b/src/main/python/plotlyst/view/widget/world/__init__.py
new file mode 100644
index 000000000..82d1fae9f
--- /dev/null
+++ b/src/main/python/plotlyst/view/widget/world/__init__.py
@@ -0,0 +1 @@
+from .editor import WorldBuildingTreeView
diff --git a/src/main/python/plotlyst/view/widget/world/editor.py b/src/main/python/plotlyst/view/widget/world/editor.py
new file mode 100644
index 000000000..22cb32b81
--- /dev/null
+++ b/src/main/python/plotlyst/view/widget/world/editor.py
@@ -0,0 +1,182 @@
+"""
+Plotlyst
+Copyright (C) 2021-2023  Zsolt Kovari
+
+This file is part of Plotlyst.
+
+Plotlyst is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+Plotlyst is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <https://www.gnu.org/licenses/>.
+"""
+from functools import partial
+from typing import Optional, Dict, Set
+
+from PyQt6.QtCore import pyqtSignal
+from qthandy import vspacer, clear_layout
+from qtmenu import MenuWidget, ActionTooltipDisplayMode
+
+from src.main.python.plotlyst.common import recursive
+from src.main.python.plotlyst.core.domain import Novel, WorldBuildingEntity, WorldBuildingEntityType
+from src.main.python.plotlyst.view.common import action
+from src.main.python.plotlyst.view.icons import IconRegistry
+from src.main.python.plotlyst.view.widget.tree import TreeView, ContainerNode, TreeSettings
+
+
+class EntityAdditionMenu(MenuWidget):
+    entityTriggered = pyqtSignal(WorldBuildingEntity)
+
+    def __init__(self, parent=None):
+        super(EntityAdditionMenu, self).__init__(parent)
+        self.setTooltipDisplayMode(ActionTooltipDisplayMode.DISPLAY_UNDER)
+
+        self.addAction(action('Location', IconRegistry.location_icon(),
+                              slot=lambda: self._triggered(WorldBuildingEntityType.SETTING),
+                              tooltip='Physical location in the world'))
+        self.addAction(action('Entity', IconRegistry.world_building_icon(),
+                              slot=lambda: self._triggered(WorldBuildingEntityType.ABSTRACT),
+                              tooltip='Abstract entity in the world, e.g., magic'))
+        self.addAction(action('Social group', IconRegistry.group_icon(),
+                              slot=lambda: self._triggered(WorldBuildingEntityType.GROUP),
+                              tooltip='Social group in the world, e.g., a guild or an organization'))
+        self.addSeparator()
+        self.addAction(action('Item', IconRegistry.from_name('mdi.ring', '#b6a6ca'),
+                              slot=lambda: self._triggered(WorldBuildingEntityType.ITEM),
+                              tooltip='Relevant item in the world, e.g., an artifact'))
+        self.addSeparator()
+        self.addAction(action('Container',
+                              slot=lambda: self._triggered(WorldBuildingEntityType.CONTAINER),
+                              tooltip='General container to group worldbuilding entities together'))
+
+    def _triggered(self, wdType: WorldBuildingEntityType):
+        if wdType == WorldBuildingEntityType.SETTING:
+            name = 'New location'
+            icon_name = 'fa5s.map-pin'
+        elif wdType == WorldBuildingEntityType.GROUP:
+            name = 'New group'
+            icon_name = 'mdi.account-group'
+        elif wdType == WorldBuildingEntityType.ITEM:
+            name = 'New item'
+        elif wdType == WorldBuildingEntityType.CONTAINER:
+            name = 'Container'
+        else:
+            name = 'New entity'
+            icon_name = ''
+
+        entity = WorldBuildingEntity(name, icon=icon_name, type=wdType)
+
+        self.entityTriggered.emit(entity)
+
+
+class EntityNode(ContainerNode):
+    addEntity = pyqtSignal(WorldBuildingEntity)
+
+    def __init__(self, entity: WorldBuildingEntity, parent=None, settings: Optional[TreeSettings] = None):
+        super(EntityNode, self).__init__(entity.name, parent=parent, settings=settings)
+        self._entity = entity
+        self.setPlusButtonEnabled(True)
+        self._additionMenu = EntityAdditionMenu(self._btnAdd)
+        self._additionMenu.entityTriggered.connect(self.addEntity.emit)
+        self.setPlusMenu(self._additionMenu)
+        self.refresh()
+
+    def entity(self) -> WorldBuildingEntity:
+        return self._entity
+
+    def refresh(self):
+        self._lblTitle.setText(self._entity.name)
+
+        if self._entity.icon:
+            self._icon.setIcon(IconRegistry.from_name(self._entity.icon, self._entity.icon_color))
+            self._icon.setVisible(True)
+        else:
+            self._icon.setHidden(True)
+
+
+class RootNode(EntityNode):
+
+    def __init__(self, entity: WorldBuildingEntity, parent=None, settings: Optional[TreeSettings] = None):
+        super(RootNode, self).__init__(entity, parent=parent, settings=settings)
+        self.setMenuEnabled(False)
+        self.setPlusButtonEnabled(False)
+
+
+class WorldBuildingTreeView(TreeView):
+    entitySelected = pyqtSignal(WorldBuildingEntity)
+
+    def __init__(self, parent=None, settings: Optional[TreeSettings] = None):
+        super(WorldBuildingTreeView, self).__init__(parent)
+        self._novel: Optional[Novel] = None
+        self._settings: Optional[TreeSettings] = settings
+        self._root: Optional[RootNode] = None
+        self._entities: Dict[WorldBuildingEntity, EntityNode] = {}
+        self._selectedEntities: Set[WorldBuildingEntity] = set()
+        self._centralWidget.setProperty('bg', True)
+
+    def selectRoot(self):
+        self._root.select()
+        self._entitySelectionChanged(self._root, self._root.isSelected())
+
+    def setSettings(self, settings: TreeSettings):
+        self._settings = settings
+
+    def setNovel(self, novel: Novel):
+        self._novel = novel
+        self._root = RootNode(self._novel.world.root_entity, settings=self._settings)
+        self._root.selectionChanged.connect(partial(self._entitySelectionChanged, self._root))
+        self.refresh()
+
+    def addEntity(self, entity: WorldBuildingEntity):
+        wdg = self.__initEntityWidget(entity)
+        self._root.addChild(wdg)
+
+    def refresh(self):
+        def addChildWdg(parent: WorldBuildingEntity, child: WorldBuildingEntity):
+            childWdg = self.__initEntityWidget(child)
+            self._entities[parent].addChild(childWdg)
+
+        self.clearSelection()
+        self._entities.clear()
+        clear_layout(self._centralWidget)
+
+        self._entities[self._novel.world.root_entity] = self._root
+        self._centralWidget.layout().addWidget(self._root)
+        for entity in self._novel.world.root_entity.children:
+            wdg = self.__initEntityWidget(entity)
+            self._root.addChild(wdg)
+            recursive(entity, lambda parent: parent.children, addChildWdg)
+        self._centralWidget.layout().addWidget(vspacer())
+
+    def clearSelection(self):
+        for entity in self._selectedEntities:
+            self._entities[entity].deselect()
+        self._selectedEntities.clear()
+
+    def _entitySelectionChanged(self, node: EntityNode, selected: bool):
+        if selected:
+            self.clearSelection()
+            self._selectedEntities.add(node.entity())
+            self.entitySelected.emit(node.entity())
+        elif node.entity() in self._selectedEntities:
+            self._selectedEntities.remove(node.entity())
+
+    def _addEntity(self, parent: EntityNode, entity: WorldBuildingEntity):
+        wdg = self.__initEntityWidget(entity)
+        parent.addChild(wdg)
+        parent.entity().children.append(entity)
+
+    def __initEntityWidget(self, entity: WorldBuildingEntity) -> EntityNode:
+        node = EntityNode(entity, settings=self._settings)
+        node.selectionChanged.connect(partial(self._entitySelectionChanged, node))
+        node.addEntity.connect(partial(self._addEntity, node))
+
+        self._entities[entity] = node
+        return node
diff --git a/src/main/python/plotlyst/view/world_building_view.py b/src/main/python/plotlyst/view/world_building_view.py
index 583dc7cc0..7f4309596 100644
--- a/src/main/python/plotlyst/view/world_building_view.py
+++ b/src/main/python/plotlyst/view/world_building_view.py
@@ -17,17 +17,20 @@
 You should have received a copy of the GNU General Public License
 along with this program.  If not, see <https://www.gnu.org/licenses/>.
 """
-from PyQt6.QtCore import Qt
-from PyQt6.QtGui import QPalette
 from overrides import overrides
+from qthandy import incr_font, transparent
 
 from src.main.python.plotlyst.core.domain import Novel, WorldBuildingEntity
 from src.main.python.plotlyst.core.template import default_location_profiles
 from src.main.python.plotlyst.view._view import AbstractNovelView
+from src.main.python.plotlyst.view.common import link_buttons_to_pages, ButtonPressResizeEventFilter
 from src.main.python.plotlyst.view.generated.world_building_view_ui import Ui_WorldBuildingView
 from src.main.python.plotlyst.view.icons import IconRegistry
-from src.main.python.plotlyst.view.widget.world_building import WorldBuildingEditor, WorldBuildingItem, \
-    WorldBuildingProfileTemplateView
+from src.main.python.plotlyst.view.widget.input import AutoAdjustableLineEdit
+from src.main.python.plotlyst.view.widget.tree import TreeSettings
+from src.main.python.plotlyst.view.widget.utility import IconSelectorButton
+from src.main.python.plotlyst.view.widget.world.editor import EntityAdditionMenu
+from src.main.python.plotlyst.view.widget.world_building import WorldBuildingProfileTemplateView
 
 
 class WorldBuildingView(AbstractNovelView):
@@ -37,33 +40,37 @@ def __init__(self, novel: Novel):
         self.ui = Ui_WorldBuildingView()
         self.ui.setupUi(self.widget)
 
-        self.widget.setPalette(QPalette(Qt.GlobalColor.white))
-        self.ui.btnEditorToggle.setIcon(IconRegistry.document_edition_icon())
+        self.ui.btnNew.setIcon(IconRegistry.plus_icon(color='white'))
+        self.ui.btnNew.installEventFilter(ButtonPressResizeEventFilter(self.ui.btnNew))
+        self._additionMenu = EntityAdditionMenu(self.ui.btnNew)
+        self._additionMenu.entityTriggered.connect(self.ui.treeWorld.addEntity)
 
-        self._editor = WorldBuildingEditor(self.novel.world.root_entity)
-        self.ui.wdgEditorParent.layout().addWidget(self._editor)
-        self.ui.wdgSidebar.setVisible(self.ui.btnEditorToggle.isChecked())
         self._settingTemplate = WorldBuildingProfileTemplateView(self.novel, default_location_profiles()[0])
-        self.ui.wdgSidebar.layout().addWidget(self._settingTemplate)
-        self.ui.wdgSidebar.setDisabled(True)
-        self.ui.splitter.setSizes([500, 150])
+        self.ui.splitter.setSizes([150, 500])
+        self._lineName = AutoAdjustableLineEdit()
+        self._lineName.setPlaceholderText('Name')
+        transparent(self._lineName)
+        incr_font(self._lineName, 15)
+        self._btnIcon = IconSelectorButton()
+        self.ui.wdgName.layout().addWidget(self._btnIcon)
+        self.ui.wdgName.layout().addWidget(self._lineName)
 
-        self._editor.scene().modelChanged.connect(lambda: self.repo.update_novel(self.novel))
-        self._editor.scene().selectionChanged.connect(self._selectionChanged)
+        self.ui.treeWorld.setSettings(TreeSettings(font_incr=2))
+        self.ui.treeWorld.setNovel(self.novel)
+        self.ui.treeWorld.entitySelected.connect(self._selection_changed)
+        self.ui.treeWorld.selectRoot()
 
-        self.ui.btnEditorToggle.setChecked(False)
+        link_buttons_to_pages(self.ui.stackedWidget, [(self.ui.btnWorldView, self.ui.pageEditor),
+                                                      (self.ui.btnHistoryView, self.ui.pageHistory)])
+        self.ui.btnWorldView.setChecked(True)
 
     @overrides
     def refresh(self):
         pass
 
-    def _selectionChanged(self):
-        self._settingTemplate.clearValues()
-
-        items = self._editor.scene().selectedItems()
-        if len(items) == 1 and isinstance(items[0], WorldBuildingItem):
-            self.ui.wdgSidebar.setEnabled(True)
-            entity: WorldBuildingEntity = items[0].entity()
-            self._settingTemplate.setLocation(entity)
+    def _selection_changed(self, entity: WorldBuildingEntity):
+        self._lineName.setText(entity.name)
+        if entity.icon:
+            self._btnIcon.selectIcon(entity.icon, entity.icon_color)
         else:
-            self.ui.wdgSidebar.setDisabled(True)
+            self._btnIcon.reset()
diff --git a/ui/main_window.ui b/ui/main_window.ui
index 4948c131d..5a93cc062 100644
--- a/ui/main_window.ui
+++ b/ui/main_window.ui
@@ -230,7 +230,7 @@
            <item>
             <widget class="QToolButton" name="btnWorld">
              <property name="enabled">
-              <bool>false</bool>
+              <bool>true</bool>
              </property>
              <property name="minimumSize">
               <size>
@@ -248,7 +248,7 @@
               <cursorShape>PointingHandCursor</cursorShape>
              </property>
              <property name="toolTip">
-              <string>World building (Not implemented yet)</string>
+              <string>World building</string>
              </property>
              <property name="text">
               <string/>
@@ -268,6 +268,9 @@
              <property name="main-navbar" stdset="0">
               <bool>true</bool>
              </property>
+             <attribute name="buttonGroup">
+              <string notr="true">buttonGroup</string>
+             </attribute>
             </widget>
            </item>
            <item>
diff --git a/ui/scenes_view.ui b/ui/scenes_view.ui
index 90d06c353..83aea30f2 100644
--- a/ui/scenes_view.ui
+++ b/ui/scenes_view.ui
@@ -1158,8 +1158,8 @@
                    <rect>
                     <x>0</x>
                     <y>0</y>
-                    <width>98</width>
-                    <height>28</height>
+                    <width>84</width>
+                    <height>16</height>
                    </rect>
                   </property>
                   <property name="sizePolicy">
@@ -1313,7 +1313,7 @@
   </connection>
  </connections>
  <buttongroups>
-  <buttongroup name="btnGroupStoryMapView"/>
   <buttongroup name="btnGroupViews"/>
+  <buttongroup name="btnGroupStoryMapView"/>
  </buttongroups>
 </ui>
diff --git a/ui/world_building_view.ui b/ui/world_building_view.ui
index 7784dd1e8..343bf6c4f 100644
--- a/ui/world_building_view.ui
+++ b/ui/world_building_view.ui
@@ -6,19 +6,22 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>400</width>
-    <height>300</height>
+    <width>1082</width>
+    <height>655</height>
    </rect>
   </property>
   <property name="windowTitle">
    <string>Form</string>
   </property>
+  <property name="bg" stdset="0">
+   <bool>true</bool>
+  </property>
   <layout class="QVBoxLayout" name="verticalLayout_3">
    <property name="spacing">
     <number>3</number>
    </property>
    <property name="leftMargin">
-    <number>2</number>
+    <number>0</number>
    </property>
    <property name="topMargin">
     <number>2</number>
@@ -29,92 +32,412 @@
    <property name="bottomMargin">
     <number>2</number>
    </property>
-   <item alignment="Qt::AlignRight">
-    <widget class="QToolButton" name="btnEditorToggle">
-     <property name="cursor">
-      <cursorShape>PointingHandCursor</cursorShape>
-     </property>
-     <property name="text">
-      <string/>
-     </property>
-     <property name="checkable">
-      <bool>true</bool>
-     </property>
-     <property name="checked">
-      <bool>true</bool>
-     </property>
-     <property name="base" stdset="0">
-      <bool>true</bool>
+   <item>
+    <widget class="QWidget" name="wdgTitleParent" native="true">
+     <property name="sizePolicy">
+      <sizepolicy hsizetype="Preferred" vsizetype="Maximum">
+       <horstretch>0</horstretch>
+       <verstretch>0</verstretch>
+      </sizepolicy>
      </property>
     </widget>
    </item>
    <item>
-    <widget class="QSplitter" name="splitter">
+    <widget class="QWidget" name="widget_2" native="true">
+     <layout class="QHBoxLayout" name="horizontalLayout_4">
+      <property name="leftMargin">
+       <number>0</number>
+      </property>
+      <property name="topMargin">
+       <number>20</number>
+      </property>
+      <property name="rightMargin">
+       <number>0</number>
+      </property>
+      <property name="bottomMargin">
+       <number>2</number>
+      </property>
+      <item>
+       <spacer name="horizontalSpacer_5">
+        <property name="orientation">
+         <enum>Qt::Horizontal</enum>
+        </property>
+        <property name="sizeHint" stdset="0">
+         <size>
+          <width>40</width>
+          <height>20</height>
+         </size>
+        </property>
+       </spacer>
+      </item>
+      <item>
+       <widget class="QToolButton" name="btnWorldView">
+        <property name="cursor">
+         <cursorShape>PointingHandCursor</cursorShape>
+        </property>
+        <property name="text">
+         <string/>
+        </property>
+        <property name="shortcut">
+         <string>1</string>
+        </property>
+        <property name="checkable">
+         <bool>true</bool>
+        </property>
+        <property name="checked">
+         <bool>false</bool>
+        </property>
+        <property name="base" stdset="0">
+         <bool>true</bool>
+        </property>
+        <attribute name="buttonGroup">
+         <string notr="true">buttonGroup</string>
+        </attribute>
+       </widget>
+      </item>
+      <item>
+       <widget class="QToolButton" name="btnHistoryView">
+        <property name="cursor">
+         <cursorShape>PointingHandCursor</cursorShape>
+        </property>
+        <property name="text">
+         <string/>
+        </property>
+        <property name="shortcut">
+         <string>3</string>
+        </property>
+        <property name="checkable">
+         <bool>true</bool>
+        </property>
+        <property name="checked">
+         <bool>false</bool>
+        </property>
+        <property name="base" stdset="0">
+         <bool>true</bool>
+        </property>
+        <attribute name="buttonGroup">
+         <string notr="true">buttonGroup</string>
+        </attribute>
+       </widget>
+      </item>
+      <item>
+       <spacer name="horizontalSpacer_8">
+        <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>
+   <item>
+    <widget class="Line" name="line">
      <property name="orientation">
       <enum>Qt::Horizontal</enum>
      </property>
-     <property name="childrenCollapsible">
-      <bool>false</bool>
+    </widget>
+   </item>
+   <item>
+    <layout class="QHBoxLayout" name="horizontalLayout">
+     <property name="leftMargin">
+      <number>15</number>
      </property>
-     <widget class="QWidget" name="wdgEditorParent" native="true">
-      <layout class="QVBoxLayout" name="verticalLayout">
-       <property name="spacing">
-        <number>0</number>
+     <property name="bottomMargin">
+      <number>5</number>
+     </property>
+     <item>
+      <widget class="QPushButton" name="btnNew">
+       <property name="maximumSize">
+        <size>
+         <width>130</width>
+         <height>16777215</height>
+        </size>
        </property>
-       <property name="leftMargin">
-        <number>0</number>
+       <property name="cursor">
+        <cursorShape>PointingHandCursor</cursorShape>
        </property>
-       <property name="topMargin">
-        <number>0</number>
+       <property name="toolTip">
+        <string>Add new scene</string>
        </property>
-       <property name="rightMargin">
-        <number>0</number>
+       <property name="text">
+        <string/>
        </property>
-       <property name="bottomMargin">
-        <number>0</number>
+       <property name="shortcut">
+        <string>Ctrl+N</string>
        </property>
-      </layout>
-     </widget>
-     <widget class="QWidget" name="wdgSidebar" native="true">
+       <property name="positive" stdset="0">
+        <bool>true</bool>
+       </property>
+       <property name="base" stdset="0">
+        <bool>true</bool>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <spacer name="horizontalSpacer">
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>40</width>
+         <height>20</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+     <item>
+      <widget class="QToolButton" name="toolButton">
+       <property name="cursor">
+        <cursorShape>PointingHandCursor</cursorShape>
+       </property>
+       <property name="text">
+        <string/>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+   <item>
+    <widget class="QSplitter" name="splitter">
+     <property name="sizePolicy">
+      <sizepolicy hsizetype="Expanding" vsizetype="Expanding">
+       <horstretch>0</horstretch>
+       <verstretch>0</verstretch>
+      </sizepolicy>
+     </property>
+     <property name="frameShape">
+      <enum>QFrame::StyledPanel</enum>
+     </property>
+     <property name="frameShadow">
+      <enum>QFrame::Sunken</enum>
+     </property>
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+     <property name="childrenCollapsible">
+      <bool>false</bool>
+     </property>
+     <widget class="QWidget" name="wgtChapters" native="true">
       <layout class="QVBoxLayout" name="verticalLayout_2">
        <property name="spacing">
         <number>3</number>
        </property>
        <property name="leftMargin">
-        <number>0</number>
+        <number>2</number>
        </property>
        <property name="topMargin">
-        <number>0</number>
+        <number>2</number>
        </property>
        <property name="rightMargin">
-        <number>0</number>
+        <number>2</number>
        </property>
        <property name="bottomMargin">
-        <number>0</number>
+        <number>2</number>
        </property>
+       <item>
+        <widget class="WorldBuildingTreeView" name="treeWorld">
+         <property name="sizePolicy">
+          <sizepolicy hsizetype="Preferred" vsizetype="Expanding">
+           <horstretch>0</horstretch>
+           <verstretch>0</verstretch>
+          </sizepolicy>
+         </property>
+         <property name="mouseTracking">
+          <bool>true</bool>
+         </property>
+        </widget>
+       </item>
       </layout>
      </widget>
+     <widget class="QStackedWidget" name="stackedWidget">
+      <property name="currentIndex">
+       <number>0</number>
+      </property>
+      <widget class="QWidget" name="pageEditor">
+       <property name="relaxed-white-bg" stdset="0">
+        <bool>true</bool>
+       </property>
+       <layout class="QVBoxLayout" name="verticalLayout">
+        <property name="spacing">
+         <number>3</number>
+        </property>
+        <property name="leftMargin">
+         <number>0</number>
+        </property>
+        <property name="topMargin">
+         <number>0</number>
+        </property>
+        <property name="rightMargin">
+         <number>0</number>
+        </property>
+        <property name="bottomMargin">
+         <number>0</number>
+        </property>
+        <item>
+         <widget class="QWidget" name="wdgHeader" native="true">
+          <layout class="QHBoxLayout" name="horizontalLayout_2">
+           <property name="leftMargin">
+            <number>8</number>
+           </property>
+           <property name="topMargin">
+            <number>5</number>
+           </property>
+           <property name="rightMargin">
+            <number>8</number>
+           </property>
+           <property name="bottomMargin">
+            <number>40</number>
+           </property>
+           <item>
+            <spacer name="horizontalSpacer_2">
+             <property name="orientation">
+              <enum>Qt::Horizontal</enum>
+             </property>
+             <property name="sizeType">
+              <enum>QSizePolicy::Expanding</enum>
+             </property>
+             <property name="sizeHint" stdset="0">
+              <size>
+               <width>40</width>
+               <height>20</height>
+              </size>
+             </property>
+            </spacer>
+           </item>
+           <item>
+            <widget class="QWidget" name="wdgName" native="true">
+             <property name="sizePolicy">
+              <sizepolicy hsizetype="Maximum" vsizetype="Preferred">
+               <horstretch>0</horstretch>
+               <verstretch>0</verstretch>
+              </sizepolicy>
+             </property>
+             <property name="maximumSize">
+              <size>
+               <width>500</width>
+               <height>16777215</height>
+              </size>
+             </property>
+             <layout class="QHBoxLayout" name="horizontalLayout_3"/>
+            </widget>
+           </item>
+           <item>
+            <spacer name="horizontalSpacer_3">
+             <property name="orientation">
+              <enum>Qt::Horizontal</enum>
+             </property>
+             <property name="sizeType">
+              <enum>QSizePolicy::Expanding</enum>
+             </property>
+             <property name="sizeHint" stdset="0">
+              <size>
+               <width>40</width>
+               <height>20</height>
+              </size>
+             </property>
+            </spacer>
+           </item>
+          </layout>
+         </widget>
+        </item>
+        <item>
+         <widget class="QTabWidget" name="tabWidget">
+          <property name="styleSheet">
+           <string notr="true"/>
+          </property>
+          <property name="currentIndex">
+           <number>0</number>
+          </property>
+          <property name="centered" stdset="0">
+           <bool>true</bool>
+          </property>
+          <property name="borderless" stdset="0">
+           <bool>true</bool>
+          </property>
+          <widget class="QWidget" name="tabAttributes">
+           <property name="relaxed-white-bg" stdset="0">
+            <bool>true</bool>
+           </property>
+           <attribute name="title">
+            <string>Attributes</string>
+           </attribute>
+          </widget>
+          <widget class="QWidget" name="tabTopics">
+           <property name="relaxed-white-bg" stdset="0">
+            <bool>true</bool>
+           </property>
+           <attribute name="title">
+            <string>Topics</string>
+           </attribute>
+          </widget>
+          <widget class="QWidget" name="tabHistory">
+           <property name="relaxed-white-bg" stdset="0">
+            <bool>true</bool>
+           </property>
+           <attribute name="title">
+            <string>History</string>
+           </attribute>
+          </widget>
+          <widget class="QWidget" name="tabNotes">
+           <property name="relaxed-white-bg" stdset="0">
+            <bool>true</bool>
+           </property>
+           <attribute name="title">
+            <string>Notes</string>
+           </attribute>
+          </widget>
+         </widget>
+        </item>
+       </layout>
+      </widget>
+      <widget class="QWidget" name="pageHistory">
+       <layout class="QVBoxLayout" name="verticalLayout_4">
+        <property name="spacing">
+         <number>3</number>
+        </property>
+        <property name="leftMargin">
+         <number>2</number>
+        </property>
+        <property name="topMargin">
+         <number>2</number>
+        </property>
+        <property name="rightMargin">
+         <number>2</number>
+        </property>
+        <property name="bottomMargin">
+         <number>2</number>
+        </property>
+        <item>
+         <widget class="QLabel" name="label">
+          <property name="text">
+           <string>TextLabel</string>
+          </property>
+         </widget>
+        </item>
+       </layout>
+      </widget>
+     </widget>
     </widget>
    </item>
   </layout>
  </widget>
+ <customwidgets>
+  <customwidget>
+   <class>WorldBuildingTreeView</class>
+   <extends>QTreeView</extends>
+   <header>src.main.python.plotlyst.view.widget.world</header>
+  </customwidget>
+ </customwidgets>
  <resources/>
- <connections>
-  <connection>
-   <sender>btnEditorToggle</sender>
-   <signal>toggled(bool)</signal>
-   <receiver>wdgSidebar</receiver>
-   <slot>setVisible(bool)</slot>
-   <hints>
-    <hint type="sourcelabel">
-     <x>382</x>
-     <y>10</y>
-    </hint>
-    <hint type="destinationlabel">
-     <x>355</x>
-     <y>37</y>
-    </hint>
-   </hints>
-  </connection>
- </connections>
+ <connections/>
+ <buttongroups>
+  <buttongroup name="buttonGroup"/>
+ </buttongroups>
 </ui>