diff --git a/apps/opencs/CMakeLists.txt b/apps/opencs/CMakeLists.txt
index 8c50438291..97922c1b72 100644
--- a/apps/opencs/CMakeLists.txt
+++ b/apps/opencs/CMakeLists.txt
@@ -30,7 +30,7 @@ opencs_units (model/world
     )
 
 opencs_hdrs (model/world
-    columnimp idcollection collection info subcellcollection
+    columnimp disabletag idcollection collection info subcellcollection
     )
 
 
diff --git a/apps/opencs/main.cpp b/apps/opencs/main.cpp
index 18caa3181c..f2e2156865 100644
--- a/apps/opencs/main.cpp
+++ b/apps/opencs/main.cpp
@@ -13,6 +13,7 @@
 #include <components/platform/platform.hpp>
 
 #include "model/doc/messages.hpp"
+#include "model/world/disabletag.hpp"
 #include "model/world/universalid.hpp"
 
 #ifdef Q_OS_MAC
@@ -53,6 +54,7 @@ int runApplication(int argc, char* argv[])
 
     qRegisterMetaType<std::string>("std::string");
     qRegisterMetaType<CSMWorld::UniversalId>("CSMWorld::UniversalId");
+    qRegisterMetaType<CSMWorld::DisableTag>("CSMWorld::DisableTag");
     qRegisterMetaType<CSMDoc::Message>("CSMDoc::Message");
 
     setQSurfaceFormat();
diff --git a/apps/opencs/model/world/columnimp.cpp b/apps/opencs/model/world/columnimp.cpp
index bce8223993..c31f9c01d0 100644
--- a/apps/opencs/model/world/columnimp.cpp
+++ b/apps/opencs/model/world/columnimp.cpp
@@ -2,6 +2,7 @@
 
 #include <apps/opencs/model/world/columnbase.hpp>
 #include <apps/opencs/model/world/columns.hpp>
+#include <apps/opencs/model/world/disabletag.hpp>
 #include <apps/opencs/model/world/land.hpp>
 #include <apps/opencs/model/world/record.hpp>
 
@@ -283,7 +284,8 @@ namespace CSMWorld
         {
             return QString::fromUtf8(record.get().mRace.getRefIdString().c_str());
         }
-        return QVariant(QVariant::UserType);
+
+        return DisableTag::getVariant();
     }
 
     void BodyPartRaceColumn::set(Record<ESM::BodyPart>& record, const QVariant& data)
diff --git a/apps/opencs/model/world/disabletag.hpp b/apps/opencs/model/world/disabletag.hpp
new file mode 100644
index 0000000000..1aee1ce6fc
--- /dev/null
+++ b/apps/opencs/model/world/disabletag.hpp
@@ -0,0 +1,22 @@
+#ifndef CSM_WOLRD_DISABLETAG_H
+#define CSM_WOLRD_DISABLETAG_H
+
+#include <QVariant>
+
+namespace CSMWorld
+{
+    class DisableTag
+    {
+    public:
+        static QVariant getVariant() { return QVariant::fromValue(CSMWorld::DisableTag()); }
+
+        static bool isDisableTag(const QVariant& variant)
+        {
+            return strcmp(variant.typeName(), "CSMWorld::DisableTag") == 0;
+        }
+    };
+}
+
+Q_DECLARE_METATYPE(CSMWorld::DisableTag)
+
+#endif
diff --git a/apps/opencs/model/world/nestedcoladapterimp.cpp b/apps/opencs/model/world/nestedcoladapterimp.cpp
index c844c5a18f..26c52ce50a 100644
--- a/apps/opencs/model/world/nestedcoladapterimp.cpp
+++ b/apps/opencs/model/world/nestedcoladapterimp.cpp
@@ -7,6 +7,7 @@
 #include <variant>
 
 #include <apps/opencs/model/world/cell.hpp>
+#include <apps/opencs/model/world/disabletag.hpp>
 #include <apps/opencs/model/world/nestedtablewrapper.hpp>
 #include <apps/opencs/model/world/record.hpp>
 
@@ -892,24 +893,24 @@ namespace CSMWorld
             // While the ambient information is not necessarily valid if the subrecord wasn't loaded,
             // the user should still be allowed to edit it
             case 1:
-                return (isInterior && !behaveLikeExterior) ? cell.mAmbi.mAmbient : QVariant(QVariant::UserType);
+                return (isInterior && !behaveLikeExterior) ? cell.mAmbi.mAmbient : DisableTag::getVariant();
             case 2:
-                return (isInterior && !behaveLikeExterior) ? cell.mAmbi.mSunlight : QVariant(QVariant::UserType);
+                return (isInterior && !behaveLikeExterior) ? cell.mAmbi.mSunlight : DisableTag::getVariant();
             case 3:
-                return (isInterior && !behaveLikeExterior) ? cell.mAmbi.mFog : QVariant(QVariant::UserType);
+                return (isInterior && !behaveLikeExterior) ? cell.mAmbi.mFog : DisableTag::getVariant();
             case 4:
-                return (isInterior && !behaveLikeExterior) ? cell.mAmbi.mFogDensity : QVariant(QVariant::UserType);
+                return (isInterior && !behaveLikeExterior) ? cell.mAmbi.mFogDensity : DisableTag::getVariant();
             case 5:
             {
                 if (isInterior && interiorWater)
                     return cell.mWater;
                 else
-                    return QVariant(QVariant::UserType);
+                    return DisableTag::getVariant();
             }
             case 6:
-                return isInterior ? QVariant(QVariant::UserType) : cell.mMapColor; // TODO: how to select?
+                return isInterior ? DisableTag::getVariant() : cell.mMapColor; // TODO: how to select?
             // case 7: return isInterior ?
-            // behaveLikeExterior : QVariant(QVariant::UserType);
+            // behaveLikeExterior : DisableTag::getVariant();
             default:
                 throw std::runtime_error("Cell subcolumn index out of range");
         }
diff --git a/apps/opencs/model/world/refidadapterimp.cpp b/apps/opencs/model/world/refidadapterimp.cpp
index c25ad6e511..e7d6eb0c1c 100644
--- a/apps/opencs/model/world/refidadapterimp.cpp
+++ b/apps/opencs/model/world/refidadapterimp.cpp
@@ -3,6 +3,7 @@
 #include <stdexcept>
 
 #include <apps/opencs/model/world/columnbase.hpp>
+#include <apps/opencs/model/world/disabletag.hpp>
 #include <apps/opencs/model/world/record.hpp>
 #include <apps/opencs/model/world/refiddata.hpp>
 #include <apps/opencs/model/world/universalid.hpp>
@@ -1117,11 +1118,11 @@ QVariant CSMWorld::NpcMiscRefIdAdapter::getNestedData(
             case 0:
                 return static_cast<int>(record.get().mNpdt.mLevel);
             case 1:
-                return QVariant(QVariant::UserType);
+                return CSMWorld::DisableTag::getVariant();
             case 2:
-                return QVariant(QVariant::UserType);
+                return CSMWorld::DisableTag::getVariant();
             case 3:
-                return QVariant(QVariant::UserType);
+                return CSMWorld::DisableTag::getVariant();
             case 4:
                 return static_cast<int>(record.get().mNpdt.mDisposition);
             case 5:
diff --git a/apps/opencs/view/world/dialoguesubview.cpp b/apps/opencs/view/world/dialoguesubview.cpp
index 24fe70af94..3a87e6cf31 100644
--- a/apps/opencs/view/world/dialoguesubview.cpp
+++ b/apps/opencs/view/world/dialoguesubview.cpp
@@ -30,6 +30,7 @@
 #include <apps/opencs/model/prefs/setting.hpp>
 #include <apps/opencs/model/world/commanddispatcher.hpp>
 #include <apps/opencs/model/world/data.hpp>
+#include <apps/opencs/model/world/disabletag.hpp>
 #include <apps/opencs/model/world/idtablebase.hpp>
 #include <apps/opencs/model/world/universalid.hpp>
 #include <apps/opencs/view/doc/subview.hpp>
@@ -655,7 +656,7 @@ void CSVWorld::EditWidget::remake(int row)
                         ++unlocked;
                     }
 
-                    if (mTable->index(row, i).data().type() == QVariant::UserType)
+                    if (CSMWorld::DisableTag::isDisableTag(mTable->index(row, i).data()))
                     {
                         editor->setEnabled(false);
                         label->setEnabled(false);
@@ -705,7 +706,7 @@ void CSVWorld::EditWidget::remake(int row)
                         unlockedLayout->addWidget(editor, unlocked, 1);
                         ++unlocked;
 
-                        if (tree->index(0, col, tree->index(row, i)).data().type() == QVariant::UserType)
+                        if (CSMWorld::DisableTag::isDisableTag(tree->index(0, col, tree->index(row, i)).data()))
                         {
                             editor->setEnabled(false);
                             label->setEnabled(false);