diff --git a/editor/panes/propertiesmodel.cpp b/editor/panes/propertiesmodel.cpp
index b26125c..c1c0a33 100644
--- a/editor/panes/propertiesmodel.cpp
+++ b/editor/panes/propertiesmodel.cpp
@@ -1,4 +1,5 @@
 #include "propertiesmodel.h"
+#include "datatypes/base.h"
 #include "qnamespace.h"
 
 PropertiesModel::PropertiesModel(InstanceRef selectedItem, QWidget *parent)
@@ -21,8 +22,9 @@ QVariant PropertiesModel::data(const QModelIndex &index, int role) const {
         case Qt::DisplayRole:
             if (index.column() == 0)
                 return QString::fromStdString(propertyName);
-            else if (index.column() == 1)
+            else if (index.column() == 1) {
                 return QString::fromStdString(selectedItem->GetPropertyValue(propertyName).value().ToString());
+            }
         // case Qt::DecorationRole:
         //     return iconOf(item->GetClass());
     }
@@ -33,8 +35,12 @@ QVariant PropertiesModel::data(const QModelIndex &index, int role) const {
 bool PropertiesModel::setData(const QModelIndex &index, const QVariant &value, int role) {
     if (index.column() != 1 && role != Qt::EditRole) return false;
 
-    selectedItem->SetPropertyValue(propertiesList[index.row()], value.toString().toStdString());
-    return true;
+    if (selectedItem->GetPropertyMeta(propertiesList[index.row()])->type == &Data::String::TYPE) {
+        selectedItem->SetPropertyValue(propertiesList[index.row()], value.toString().toStdString());
+        return true;
+    }
+
+    return false;
 }
 
 Qt::ItemFlags PropertiesModel::flags(const QModelIndex &index) const {
diff --git a/src/datatypes/base.h b/src/datatypes/base.h
index 84db758..47c701d 100644
--- a/src/datatypes/base.h
+++ b/src/datatypes/base.h
@@ -18,6 +18,7 @@ public: \
 namespace Data {
     struct TypeInfo {
         std::string name;
+        TypeInfo(const TypeInfo&) = delete;
     };
 
     class String;
diff --git a/src/objects/base/instance.cpp b/src/objects/base/instance.cpp
index 72c3f1a..3889262 100644
--- a/src/objects/base/instance.cpp
+++ b/src/objects/base/instance.cpp
@@ -30,7 +30,7 @@ Instance::Instance(InstanceType* type) {
     this->memberMap = std::make_unique<MemberMap>( MemberMap {
         .super = std::nullopt,
         .members = {
-            { "Name", { .backingField = &name, .codec = fieldCodecOf<Data::String, std::string>() } }
+            { "Name", { .backingField = &name, .type = &Data::String::TYPE, .codec = fieldCodecOf<Data::String, std::string>() } }
         }
     });
 }
diff --git a/src/objects/base/member.h b/src/objects/base/member.h
index 3859afe..87de137 100644
--- a/src/objects/base/member.h
+++ b/src/objects/base/member.h
@@ -34,7 +34,7 @@ constexpr FieldCodec fieldCodecOf() {
 
 struct PropertyMeta {
     void* backingField;
-    Data::TypeInfo type;
+    const Data::TypeInfo* type;
     FieldCodec codec;
 };
 
diff --git a/src/objects/part.cpp b/src/objects/part.cpp
index b8c7570..1454c1f 100644
--- a/src/objects/part.cpp
+++ b/src/objects/part.cpp
@@ -23,11 +23,11 @@ Part::Part(): Part(PartConstructParams {}) {
 
 Part::Part(PartConstructParams params): Instance(&TYPE_), position(params.position), rotation(params.rotation),
                                         scale(params.scale), material(params.material), anchored(params.anchored) {
-
+                                            
     this->memberMap = std::make_unique<MemberMap>(MemberMap {
         .super = std::move(this->memberMap),
         .members = {
-            { "Anchored", { .backingField = &anchored, .codec = fieldCodecOf<Data::Bool, bool>() } }
+            { "Anchored", { .backingField = &anchored, .type = &Data::Bool::TYPE, .codec = fieldCodecOf<Data::Bool, bool>() } }
         }
     });
 }