diff --git a/novelwriter/core/options.py b/novelwriter/core/options.py
index 9f813abc..419e4ec2 100644
--- a/novelwriter/core/options.py
+++ b/novelwriter/core/options.py
@@ -73,6 +73,9 @@ VALID_MAP: dict[str, set[str]] = {
         "widthCol3", "widthCol4", "wordsPerPage", "countFrom", "clearDouble",
         "novelRoot",
     },
+    "GuiOutlineDetails": {
+        "detailsWidth", "tagsWidth",
+    }
 }
 
 
diff --git a/novelwriter/gui/itemdetails.py b/novelwriter/gui/itemdetails.py
index 73542889..6d67d74c 100644
--- a/novelwriter/gui/itemdetails.py
+++ b/novelwriter/gui/itemdetails.py
@@ -30,7 +30,7 @@ from PyQt5.QtWidgets import QGridLayout, QLabel, QWidget
 
 from novelwriter import CONFIG, SHARED
 from novelwriter.common import elide
-from novelwriter.constants import nwLabels, trConst
+from novelwriter.constants import nwLabels, nwStats, trConst
 from novelwriter.types import (
     QtAlignLeft, QtAlignLeftBase, QtAlignRight, QtAlignRightBase,
     QtAlignRightMiddle
@@ -62,6 +62,10 @@ class GuiItemDetails(QWidget):
         fntValue = self.font()
         fntValue.setPointSizeF(0.9*fPt)
 
+        trStats1 = trConst(nwLabels.STATS_NAME[nwStats.CHARS_ALL])
+        trStats2 = trConst(nwLabels.STATS_NAME[nwStats.WORDS_ALL])
+        trStats3 = trConst(nwLabels.STATS_NAME[nwStats.PARAGRAPHS])
+
         # Label
         self.labelName = QLabel(self.tr("Label"), self)
         self.labelName.setFont(fntLabel)
@@ -113,7 +117,7 @@ class GuiItemDetails(QWidget):
         self.usageData.setWordWrap(True)
 
         # Character Count
-        self.cCountName = QLabel("  "+self.tr("Characters"), self)
+        self.cCountName = QLabel(trStats1, self)
         self.cCountName.setFont(fntLabel)
         self.cCountName.setAlignment(QtAlignRight)
 
@@ -122,7 +126,7 @@ class GuiItemDetails(QWidget):
         self.cCountData.setAlignment(QtAlignRight)
 
         # Word Count
-        self.wCountName = QLabel("  "+self.tr("Words"), self)
+        self.wCountName = QLabel(trStats2, self)
         self.wCountName.setFont(fntLabel)
         self.wCountName.setAlignment(QtAlignRight)
 
@@ -131,7 +135,7 @@ class GuiItemDetails(QWidget):
         self.wCountData.setAlignment(QtAlignRight)
 
         # Paragraph Count
-        self.pCountName = QLabel("  "+self.tr("Paragraphs"), self)
+        self.pCountName = QLabel(trStats3, self)
         self.pCountName.setFont(fntLabel)
         self.pCountName.setAlignment(QtAlignRight)
 
diff --git a/novelwriter/gui/outline.py b/novelwriter/gui/outline.py
index 54b8102e..a55c61ce 100644
--- a/novelwriter/gui/outline.py
+++ b/novelwriter/gui/outline.py
@@ -42,7 +42,7 @@ from PyQt5.QtWidgets import (
 
 from novelwriter import CONFIG, SHARED
 from novelwriter.common import checkInt, formatFileFilter, makeFileNameSafe
-from novelwriter.constants import nwKeyWords, nwLabels, nwStyles, trConst
+from novelwriter.constants import nwKeyWords, nwLabels, nwStats, nwStyles, trConst
 from novelwriter.enum import nwDocMode, nwItemClass, nwItemLayout, nwItemType, nwOutline
 from novelwriter.error import logException
 from novelwriter.extensions.configlayout import NColourLabel
@@ -135,12 +135,14 @@ class GuiOutlineView(QWidget):
         self.outlineBar.populateNovelList()
         self.outlineBar.setCurrentRoot(lastOutline)
         self.outlineBar.setEnabled(True)
+        self.outlineData.loadGuiSettings()
 
         return
 
     def closeProjectTasks(self) -> None:
         """Run closing project tasks."""
         self.outlineTree.closeProjectTasks()
+        self.outlineData.saveGuiSettings()
         self.outlineData.updateClasses()
         self.clearOutline()
         return
@@ -799,6 +801,10 @@ class GuiOutlineDetails(QScrollArea):
 
         bFont = SHARED.theme.guiFontB
 
+        trStats1 = trConst(nwLabels.STATS_NAME[nwStats.CHARS_ALL])
+        trStats2 = trConst(nwLabels.STATS_NAME[nwStats.WORDS_ALL])
+        trStats3 = trConst(nwLabels.STATS_NAME[nwStats.PARAGRAPHS])
+
         # Details Area
         self.titleLabel = QLabel(self.tr("Title"), self)
         self.fileLabel  = QLabel(self.tr("Document"), self)
@@ -819,9 +825,9 @@ class GuiOutlineDetails(QScrollArea):
         self.itemValue.setMaximumWidth(maxTitle)
 
         # Stats Area
-        self.cCLabel = QLabel(self.tr("Characters"), self)
-        self.wCLabel = QLabel(self.tr("Words"), self)
-        self.pCLabel = QLabel(self.tr("Paragraphs"), self)
+        self.cCLabel = QLabel(trStats1, self)
+        self.wCLabel = QLabel(trStats2, self)
+        self.pCLabel = QLabel(trStats3, self)
         self.cCValue = QLabel("", self)
         self.wCValue = QLabel("", self)
         self.pCValue = QLabel("", self)
@@ -848,94 +854,9 @@ class GuiOutlineDetails(QScrollArea):
         self.synopLWrap = QHBoxLayout()
         self.synopLWrap.addWidget(self.synopValue, 1)
 
-        # Tags
-        self.povKeyLabel = QLabel(trConst(nwLabels.KEY_NAME[nwKeyWords.POV_KEY]), self)
-        self.focKeyLabel = QLabel(trConst(nwLabels.KEY_NAME[nwKeyWords.FOCUS_KEY]), self)
-        self.chrKeyLabel = QLabel(trConst(nwLabels.KEY_NAME[nwKeyWords.CHAR_KEY]), self)
-        self.pltKeyLabel = QLabel(trConst(nwLabels.KEY_NAME[nwKeyWords.PLOT_KEY]), self)
-        self.timKeyLabel = QLabel(trConst(nwLabels.KEY_NAME[nwKeyWords.TIME_KEY]), self)
-        self.wldKeyLabel = QLabel(trConst(nwLabels.KEY_NAME[nwKeyWords.WORLD_KEY]), self)
-        self.objKeyLabel = QLabel(trConst(nwLabels.KEY_NAME[nwKeyWords.OBJECT_KEY]), self)
-        self.entKeyLabel = QLabel(trConst(nwLabels.KEY_NAME[nwKeyWords.ENTITY_KEY]), self)
-        self.cstKeyLabel = QLabel(trConst(nwLabels.KEY_NAME[nwKeyWords.CUSTOM_KEY]), self)
-        self.styKeyLabel = QLabel(trConst(nwLabels.KEY_NAME[nwKeyWords.STORY_KEY]), self)
-        self.mntKeyLabel = QLabel(trConst(nwLabels.KEY_NAME[nwKeyWords.MENTION_KEY]), self)
-
-        self.povKeyLabel.setFont(bFont)
-        self.focKeyLabel.setFont(bFont)
-        self.chrKeyLabel.setFont(bFont)
-        self.pltKeyLabel.setFont(bFont)
-        self.timKeyLabel.setFont(bFont)
-        self.wldKeyLabel.setFont(bFont)
-        self.objKeyLabel.setFont(bFont)
-        self.entKeyLabel.setFont(bFont)
-        self.cstKeyLabel.setFont(bFont)
-        self.styKeyLabel.setFont(bFont)
-        self.mntKeyLabel.setFont(bFont)
-
-        self.povKeyLWrap = QHBoxLayout()
-        self.focKeyLWrap = QHBoxLayout()
-        self.chrKeyLWrap = QHBoxLayout()
-        self.pltKeyLWrap = QHBoxLayout()
-        self.timKeyLWrap = QHBoxLayout()
-        self.wldKeyLWrap = QHBoxLayout()
-        self.objKeyLWrap = QHBoxLayout()
-        self.entKeyLWrap = QHBoxLayout()
-        self.cstKeyLWrap = QHBoxLayout()
-        self.styKeyLWrap = QHBoxLayout()
-        self.mntKeyLWrap = QHBoxLayout()
-
-        self.povKeyValue = QLabel("", self)
-        self.focKeyValue = QLabel("", self)
-        self.chrKeyValue = QLabel("", self)
-        self.pltKeyValue = QLabel("", self)
-        self.timKeyValue = QLabel("", self)
-        self.wldKeyValue = QLabel("", self)
-        self.objKeyValue = QLabel("", self)
-        self.entKeyValue = QLabel("", self)
-        self.cstKeyValue = QLabel("", self)
-        self.styKeyValue = QLabel("", self)
-        self.mntKeyValue = QLabel("", self)
-
-        self.povKeyValue.setWordWrap(True)
-        self.focKeyValue.setWordWrap(True)
-        self.chrKeyValue.setWordWrap(True)
-        self.pltKeyValue.setWordWrap(True)
-        self.timKeyValue.setWordWrap(True)
-        self.wldKeyValue.setWordWrap(True)
-        self.objKeyValue.setWordWrap(True)
-        self.entKeyValue.setWordWrap(True)
-        self.cstKeyValue.setWordWrap(True)
-        self.styKeyValue.setWordWrap(True)
-        self.mntKeyValue.setWordWrap(True)
-
-        self.povKeyValue.linkActivated.connect(lambda x: self.itemTagClicked.emit(x))
-        self.focKeyValue.linkActivated.connect(lambda x: self.itemTagClicked.emit(x))
-        self.chrKeyValue.linkActivated.connect(lambda x: self.itemTagClicked.emit(x))
-        self.pltKeyValue.linkActivated.connect(lambda x: self.itemTagClicked.emit(x))
-        self.timKeyValue.linkActivated.connect(lambda x: self.itemTagClicked.emit(x))
-        self.wldKeyValue.linkActivated.connect(lambda x: self.itemTagClicked.emit(x))
-        self.objKeyValue.linkActivated.connect(lambda x: self.itemTagClicked.emit(x))
-        self.entKeyValue.linkActivated.connect(lambda x: self.itemTagClicked.emit(x))
-        self.cstKeyValue.linkActivated.connect(lambda x: self.itemTagClicked.emit(x))
-        self.styKeyValue.linkActivated.connect(lambda x: self.itemTagClicked.emit(x))
-        self.mntKeyValue.linkActivated.connect(lambda x: self.itemTagClicked.emit(x))
-
-        self.povKeyLWrap.addWidget(self.povKeyValue, 1)
-        self.focKeyLWrap.addWidget(self.focKeyValue, 1)
-        self.chrKeyLWrap.addWidget(self.chrKeyValue, 1)
-        self.pltKeyLWrap.addWidget(self.pltKeyValue, 1)
-        self.timKeyLWrap.addWidget(self.timKeyValue, 1)
-        self.wldKeyLWrap.addWidget(self.wldKeyValue, 1)
-        self.objKeyLWrap.addWidget(self.objKeyValue, 1)
-        self.entKeyLWrap.addWidget(self.entKeyValue, 1)
-        self.cstKeyLWrap.addWidget(self.cstKeyValue, 1)
-        self.styKeyLWrap.addWidget(self.styKeyValue, 1)
-        self.mntKeyLWrap.addWidget(self.mntKeyValue, 1)
-
         # Selected Item Details
-        self.mainGroup = QGroupBox(self.tr("Title Details"), self)
         self.mainForm = QGridLayout()
+        self.mainGroup = QGroupBox(self.tr("Title Details"), self)
         self.mainGroup.setLayout(self.mainForm)
 
         self.mainForm.addWidget(self.titleLabel, 0, 0, 1, 1, QtAlignLeftTop)
@@ -959,46 +880,37 @@ class GuiOutlineDetails(QScrollArea):
         self.mainForm.setVerticalSpacing(vSpace)
 
         # Selected Item Tags
-        self.tagsGroup = QGroupBox(self.tr("Reference Tags"), self)
         self.tagsForm = QGridLayout()
+        self.tagsGroup = QGroupBox(self.tr("Reference Tags"), self)
         self.tagsGroup.setLayout(self.tagsForm)
 
-        self.tagsForm.addWidget(self.povKeyLabel,  0, 0, QtAlignLeftTop)
-        self.tagsForm.addLayout(self.povKeyLWrap,  0, 1, QtAlignLeftTop)
-        self.tagsForm.addWidget(self.focKeyLabel,  1, 0, QtAlignLeftTop)
-        self.tagsForm.addLayout(self.focKeyLWrap,  1, 1, QtAlignLeftTop)
-        self.tagsForm.addWidget(self.chrKeyLabel,  2, 0, QtAlignLeftTop)
-        self.tagsForm.addLayout(self.chrKeyLWrap,  2, 1, QtAlignLeftTop)
-        self.tagsForm.addWidget(self.pltKeyLabel,  3, 0, QtAlignLeftTop)
-        self.tagsForm.addLayout(self.pltKeyLWrap,  3, 1, QtAlignLeftTop)
-        self.tagsForm.addWidget(self.timKeyLabel,  4, 0, QtAlignLeftTop)
-        self.tagsForm.addLayout(self.timKeyLWrap,  4, 1, QtAlignLeftTop)
-        self.tagsForm.addWidget(self.wldKeyLabel,  5, 0, QtAlignLeftTop)
-        self.tagsForm.addLayout(self.wldKeyLWrap,  5, 1, QtAlignLeftTop)
-        self.tagsForm.addWidget(self.objKeyLabel,  6, 0, QtAlignLeftTop)
-        self.tagsForm.addLayout(self.objKeyLWrap,  6, 1, QtAlignLeftTop)
-        self.tagsForm.addWidget(self.entKeyLabel,  7, 0, QtAlignLeftTop)
-        self.tagsForm.addLayout(self.entKeyLWrap,  7, 1, QtAlignLeftTop)
-        self.tagsForm.addWidget(self.cstKeyLabel,  8, 0, QtAlignLeftTop)
-        self.tagsForm.addLayout(self.cstKeyLWrap,  8, 1, QtAlignLeftTop)
-        self.tagsForm.addWidget(self.styKeyLabel,  9, 0, QtAlignLeftTop)
-        self.tagsForm.addLayout(self.styKeyLWrap,  9, 1, QtAlignLeftTop)
-        self.tagsForm.addWidget(self.mntKeyLabel, 10, 0, QtAlignLeftTop)
-        self.tagsForm.addLayout(self.mntKeyLWrap, 10, 1, QtAlignLeftTop)
+        self.tagValues: dict[str, tuple[QLabel, QLabel]] = {}
+        for key in nwKeyWords.ALL_KEYS:
+            label = QLabel(trConst(nwLabels.KEY_NAME[key]), self)
+            label.setFont(bFont)
+            value = QLabel("", self)
+            value.setWordWrap(True)
+            value.linkActivated.connect(lambda x: self.itemTagClicked.emit(x))
+            layout = QHBoxLayout()
+            layout.addWidget(value, 1)
+            n = len(self.tagValues)
+            self.tagsForm.addWidget(label, n, 0, QtAlignLeftTop)
+            self.tagsForm.addLayout(layout, n, 1, QtAlignLeftTop)
+            self.tagValues[key] = (label, value)
 
         self.tagsForm.setColumnStretch(1, 1)
-        self.tagsForm.setRowStretch(10, 1)
+        self.tagsForm.setRowStretch(len(self.tagValues), 1)
         self.tagsForm.setHorizontalSpacing(hSpace)
         self.tagsForm.setVerticalSpacing(vSpace)
 
         # Assemble
-        self.outerWidget = QWidget(self)
-        self.outerBox = QHBoxLayout()
-        self.outerBox.addWidget(self.mainGroup, 0)
-        self.outerBox.addWidget(self.tagsGroup, 1)
+        self.mainSplit = QSplitter(Qt.Orientation.Horizontal)
+        self.mainSplit.addWidget(self.mainGroup)
+        self.mainSplit.addWidget(self.tagsGroup)
+        self.mainSplit.setCollapsible(0, False)
+        self.mainSplit.setCollapsible(1, False)
 
-        self.outerWidget.setLayout(self.outerBox)
-        self.setWidget(self.outerWidget)
+        self.setWidget(self.mainSplit)
 
         self.setHorizontalScrollBarPolicy(QtScrollAsNeeded)
         self.setVerticalScrollBarPolicy(QtScrollAsNeeded)
@@ -1024,6 +936,28 @@ class GuiOutlineDetails(QScrollArea):
         self.updateClasses()
         return
 
+    def loadGuiSettings(self) -> None:
+        """Run open project tasks."""
+        half = self.width() // 2
+        pOptions = SHARED.project.options
+        self.mainSplit.setSizes([
+            CONFIG.pxInt(pOptions.getInt("GuiOutlineDetails", "detailsWidth", half)),
+            CONFIG.pxInt(pOptions.getInt("GuiOutlineDetails", "tagsWidth", half))
+        ])
+        return
+
+    def saveGuiSettings(self) -> None:
+        """Run close project tasks."""
+        mainSplit = self.mainSplit.sizes()
+        detailsWidth = CONFIG.rpxInt(mainSplit[0])
+        tagsWidth = CONFIG.rpxInt(mainSplit[1])
+
+        logger.debug("Saving State: GuiOutlineDetails")
+        pOptions = SHARED.project.options
+        pOptions.setValue("GuiOutlineDetails", "detailsWidth", detailsWidth)
+        pOptions.setValue("GuiOutlineDetails", "tagsWidth", tagsWidth)
+        return
+
     def clearDetails(self) -> None:
         """Clear all the data labels."""
         self.titleLabel.setText(self.tr("Title"))
@@ -1034,17 +968,10 @@ class GuiOutlineDetails(QScrollArea):
         self.wCValue.setText("")
         self.pCValue.setText("")
         self.synopValue.setText("")
-        self.povKeyValue.setText("")
-        self.focKeyValue.setText("")
-        self.chrKeyValue.setText("")
-        self.pltKeyValue.setText("")
-        self.timKeyValue.setText("")
-        self.wldKeyValue.setText("")
-        self.objKeyValue.setText("")
-        self.entKeyValue.setText("")
-        self.cstKeyValue.setText("")
-        self.styKeyValue.setText("")
-        self.mntKeyValue.setText("")
+
+        for _, value in self.tagValues.values():
+            value.setText("")
+
         self.updateClasses()
         return
 
@@ -1076,17 +1003,8 @@ class GuiOutlineDetails(QScrollArea):
 
             self.synopValue.setText(novIdx.synopsis)
 
-            self.povKeyValue.setText(self._formatTags(novRefs, nwKeyWords.POV_KEY))
-            self.focKeyValue.setText(self._formatTags(novRefs, nwKeyWords.FOCUS_KEY))
-            self.chrKeyValue.setText(self._formatTags(novRefs, nwKeyWords.CHAR_KEY))
-            self.pltKeyValue.setText(self._formatTags(novRefs, nwKeyWords.PLOT_KEY))
-            self.timKeyValue.setText(self._formatTags(novRefs, nwKeyWords.TIME_KEY))
-            self.wldKeyValue.setText(self._formatTags(novRefs, nwKeyWords.WORLD_KEY))
-            self.objKeyValue.setText(self._formatTags(novRefs, nwKeyWords.OBJECT_KEY))
-            self.entKeyValue.setText(self._formatTags(novRefs, nwKeyWords.ENTITY_KEY))
-            self.cstKeyValue.setText(self._formatTags(novRefs, nwKeyWords.CUSTOM_KEY))
-            self.styKeyValue.setText(self._formatTags(novRefs, nwKeyWords.STORY_KEY))
-            self.mntKeyValue.setText(self._formatTags(novRefs, nwKeyWords.MENTION_KEY))
+            for key, (_, value) in self.tagValues.items():
+                value.setText(self._formatTags(novRefs, key))
 
         return
 
@@ -1094,27 +1012,12 @@ class GuiOutlineDetails(QScrollArea):
     def updateClasses(self) -> None:
         """Update the visibility status of class details."""
         usedClasses = SHARED.project.tree.rootClasses()
-
-        pltVisible = nwItemClass.PLOT in usedClasses
-        timVisible = nwItemClass.TIMELINE in usedClasses
-        wldVisible = nwItemClass.WORLD in usedClasses
-        objVisible = nwItemClass.OBJECT in usedClasses
-        entVisible = nwItemClass.ENTITY in usedClasses
-        cstVisible = nwItemClass.CUSTOM in usedClasses
-
-        self.pltKeyLabel.setVisible(pltVisible)
-        self.pltKeyValue.setVisible(pltVisible)
-        self.timKeyLabel.setVisible(timVisible)
-        self.timKeyValue.setVisible(timVisible)
-        self.wldKeyLabel.setVisible(wldVisible)
-        self.wldKeyValue.setVisible(wldVisible)
-        self.objKeyLabel.setVisible(objVisible)
-        self.objKeyValue.setVisible(objVisible)
-        self.entKeyLabel.setVisible(entVisible)
-        self.entKeyValue.setVisible(entVisible)
-        self.cstKeyLabel.setVisible(cstVisible)
-        self.cstKeyValue.setVisible(cstVisible)
-
+        for key, itemClass in nwKeyWords.KEY_CLASS.items():
+            visible = itemClass in usedClasses
+            if key in self.tagValues:
+                label, value = self.tagValues[key]
+                label.setVisible(visible)
+                value.setVisible(visible)
         return
 
     @staticmethod
diff --git a/tests/test_gui/test_gui_outline.py b/tests/test_gui/test_gui_outline.py
index 3dc6b32b..dabd9cf0 100644
--- a/tests/test_gui/test_gui_outline.py
+++ b/tests/test_gui/test_gui_outline.py
@@ -29,6 +29,7 @@ import pytest
 from PyQt5.QtWidgets import QAction, QFileDialog, QWidget
 
 from novelwriter import CONFIG, SHARED
+from novelwriter.constants import nwKeyWords
 from novelwriter.enum import nwItemClass, nwOutline, nwView
 from novelwriter.types import QtScrollAlwaysOff, QtScrollAsNeeded
 
@@ -261,7 +262,7 @@ def testGuiOutline_Content(qtbot, monkeypatch, nwGUI, prjLipsum, fncPath, tstPat
     assert outlineData.itemValue.text() == "Finished"
 
     # Click POV Link
-    assert outlineData.povKeyValue.text() == "<a href='Bod'>Bod</a>"
+    assert outlineData.tagValues[nwKeyWords.POV_KEY][1].text() == "<a href='Bod'>Bod</a>"
     outlineView._tagClicked("Bod")
     assert nwGUI.docViewer.docHandle == "4c4f28287af27"