diff --git a/public/reearth.yml b/public/reearth.yml
index 9cf9700..020ca86 100644
--- a/public/reearth.yml
+++ b/public/reearth.yml
@@ -129,6 +129,15 @@ extensions:
               description: "Specify the fields to display in the infobox, please use field keys separated by commas. Left empty to show all fields."
               type: string
               ui: multiline
+            - id: title_hidden_fields
+              title: Title Hidden Fields
+              description: "Specify the fields to hide their titles from the infobox, please use field keys separated by commas."
+              type: string
+              ui: multiline
+            - id: title_field
+              title: Title Field
+              description: "Specify the field to use as the title in the infobox."
+              type: string
   - id: inspector_block
     type: infoboxBlock
     name: CMS Data Inspector Block
diff --git a/src/extensions/inspector_block/inspector_block.ts b/src/extensions/inspector_block/inspector_block.ts
index 0ed5e82..76da538 100644
--- a/src/extensions/inspector_block/inspector_block.ts
+++ b/src/extensions/inspector_block/inspector_block.ts
@@ -3,27 +3,26 @@ import html_main from "@distui/inspector_block/main/index.html?raw";
 import { GlobalThis } from "@/shared/reearthTypes";
 
 type UIMessage = {
-  action: "getProperties";
+  action: "getInspector";
 };
 
 const reearth = (globalThis as unknown as GlobalThis).reearth;
 reearth.ui.show(html_main);
 
-const sendProperties = () => {
+const sendInspector = () => {
   reearth.ui.postMessage({
-    action: "getProperties",
+    action: "getInspector",
     payload:
-      reearth.layers.selectedFeature?.properties?.__inspector_fields ||
-      undefined,
+      reearth.layers.selectedFeature?.properties?.__inspector || undefined,
   });
 };
 
-reearth.layers.on("select", sendProperties);
+reearth.layers.on("select", sendInspector);
 
 reearth.extension.on("message", (message: unknown) => {
   const msg = message as UIMessage;
 
-  if (msg.action === "getProperties") {
-    sendProperties();
+  if (msg.action === "getInspector") {
+    sendInspector();
   }
 });
diff --git a/src/extensions/inspector_block/main/App.tsx b/src/extensions/inspector_block/main/App.tsx
index 1164b23..95e9ece 100644
--- a/src/extensions/inspector_block/main/App.tsx
+++ b/src/extensions/inspector_block/main/App.tsx
@@ -1,32 +1,36 @@
 import useHooks from "./hooks";
-import PropertyValue, { SingleValueProperty } from "./PropertyValue";
+import PropertyItem from "./PropertyItem";
 
 function App() {
-  const { properties } = useHooks();
+  const { inspector } = useHooks();
 
-  if (!properties) {
+  if (!inspector) {
     return null;
   }
 
   return (
     <div className="flex flex-col gap-4 text-sm text-gray-700">
-      {properties.map((prop) => (
-        <div key={prop.id} className="flex flex-col gap-1">
-          <div className="font-bold text-black">{prop.name ?? prop.key}</div>
-          {Array.isArray(prop.value) ? (
-            <div className="flex flex-col gap-1">
-              {prop.value.map((item, index) => (
-                <PropertyValue
-                  key={index}
-                  property={{ ...prop, value: item }}
-                />
-              ))}
+      {inspector.title && (
+        <div className="text-lg font-bold">{inspector.title}</div>
+      )}
+      {inspector.properties.map((property) =>
+        property.type === "group" ? (
+          <div key={property.id} className="flex flex-col gap-2">
+            {!property.hideTitle && (
+              <div className="font-bold text-black">
+                {property.name ?? property.key}
+              </div>
+            )}
+            <div key={property.id} className="flex flex-col gap-2">
+              {property.children?.map((child) => (
+                <PropertyItem key={child.id} property={child} />
+              )) ?? null}
             </div>
-          ) : (
-            <PropertyValue property={prop as SingleValueProperty} />
-          )}
-        </div>
-      ))}
+          </div>
+        ) : (
+          <PropertyItem key={property.id} property={property} />
+        )
+      )}
     </div>
   );
 }
diff --git a/src/extensions/inspector_block/main/PropertyItem.tsx b/src/extensions/inspector_block/main/PropertyItem.tsx
new file mode 100644
index 0000000..6366c04
--- /dev/null
+++ b/src/extensions/inspector_block/main/PropertyItem.tsx
@@ -0,0 +1,43 @@
+import { FC } from "react";
+
+import { Property } from "./hooks";
+import PropertyValue, { SingleValueProperty } from "./PropertyValue";
+
+type PropertyItemProps = {
+  property: Property;
+};
+
+const PropertyItem: FC<PropertyItemProps> = ({ property }) => {
+  if (
+    property.hideTitle &&
+    (property.value === undefined ||
+      property.value === "" ||
+      property.value === null)
+  ) {
+    return null;
+  }
+
+  return (
+    <div key={property.id} className="flex flex-col gap-1">
+      {!property.hideTitle && (
+        <div className="font-bold text-black">
+          {property.name ?? property.key}
+        </div>
+      )}
+      {Array.isArray(property.value) ? (
+        <div className="flex flex-col gap-1">
+          {property.value.map((item, index) => (
+            <PropertyValue
+              key={index}
+              property={{ ...property, value: item }}
+            />
+          ))}
+        </div>
+      ) : (
+        <PropertyValue property={property as SingleValueProperty} />
+      )}
+    </div>
+  );
+};
+
+export default PropertyItem;
diff --git a/src/extensions/inspector_block/main/PropertyValue.tsx b/src/extensions/inspector_block/main/PropertyValue.tsx
index b04dd95..5ab6d43 100644
--- a/src/extensions/inspector_block/main/PropertyValue.tsx
+++ b/src/extensions/inspector_block/main/PropertyValue.tsx
@@ -73,5 +73,5 @@ const PropertyValue: FC<Props> = ({ property }) => {
 export default PropertyValue;
 
 const isImageUrl = (url: string) => {
-  return /\.(jpeg|jpg|gif|png|svg)$/.test(url);
+  return /\.(jpeg|jpg|gif|png|svg)$/.test(url.toLowerCase());
 };
diff --git a/src/extensions/inspector_block/main/hooks.ts b/src/extensions/inspector_block/main/hooks.ts
index e317bb2..bc9f1e7 100644
--- a/src/extensions/inspector_block/main/hooks.ts
+++ b/src/extensions/inspector_block/main/hooks.ts
@@ -2,7 +2,7 @@ import { useEffect, useState } from "react";
 
 import { postMsg } from "@/shared/utils";
 
-export type Field = {
+export type Property = {
   id: string;
   key: string;
   type: string;
@@ -15,18 +15,25 @@ export type Field = {
     | number[]
     | boolean[];
   name: string;
+  hideTitle?: boolean;
+  children?: Property[];
+};
+
+export type Inspector = {
+  title?: string;
+  properties: Property[];
 };
 
 export default () => {
-  const [properties, setProperties] = useState<Field[] | null>(null);
+  const [inspector, setInspector] = useState<Inspector | null>(null);
 
   useEffect(() => {
-    postMsg("getProperties");
+    postMsg("getInspector");
   }, []);
 
   const handleMessage = (e: MessageEvent) => {
-    if (e.data.action === "getProperties") {
-      setProperties(e.data.payload);
+    if (e.data.action === "getInspector") {
+      setInspector(e.data.payload);
     }
   };
 
@@ -38,6 +45,6 @@ export default () => {
   }, []);
 
   return {
-    properties,
+    inspector,
   };
 };
diff --git a/src/extensions/visualizer/visualizer.ts b/src/extensions/visualizer/visualizer.ts
index b2f7f6f..08e1c66 100644
--- a/src/extensions/visualizer/visualizer.ts
+++ b/src/extensions/visualizer/visualizer.ts
@@ -13,6 +13,8 @@ type VisualizationConfig = {
 
 type InspectorConfig = {
   display_fields?: string;
+  title_hidden_fields?: string;
+  title_field?: string;
 };
 
 type WidgetProperty = {
@@ -27,6 +29,8 @@ type ItemField = {
   type: string;
   value: unknown;
   name?: string;
+  group?: string;
+  children?: ItemField[];
 };
 
 type Item = {
@@ -132,9 +136,13 @@ const generateGeoJSON = (
   // Convert items to GeoJSON features
   const inspectorConfig =
     (reearth.extension?.widget?.property as WidgetProperty)?.inspector || {};
+
   const displayFields = inspectorConfig.display_fields
     ? inspectorConfig.display_fields.split(",").map((f) => f.trim())
     : [];
+  const titleHiddenFields = inspectorConfig.title_hidden_fields
+    ? inspectorConfig.title_hidden_fields.split(",").map((f) => f.trim())
+    : [];
 
   const features = items
     .map((item) => {
@@ -146,8 +154,18 @@ const generateGeoJSON = (
         properties[field.key] = field.value;
       });
 
-      // Add filtered fields for inspector
-      properties.__inspector_fields = filterFields(item.fields, displayFields);
+      // Add property for inspector
+      properties.__inspector = {
+        title: inspectorConfig.title_field
+          ? item.fields.find((f) => f.key === inspectorConfig.title_field)
+              ?.value
+          : undefined,
+        properties: processProperties(
+          item.fields,
+          displayFields,
+          titleHiddenFields
+        ),
+      };
 
       // Get location
       const coordinates = [];
@@ -163,7 +181,7 @@ const generateGeoJSON = (
           return null;
         }
 
-        coordinates.push(lng, lat);
+        coordinates.push(Number(lng), Number(lat));
       } else if (config.location_type === "lng_lat_array_field") {
         const latLngArray = item.fields.find(
           (f) => f.key === config.longitude_latitude_array_field_key
@@ -172,7 +190,7 @@ const generateGeoJSON = (
           console.log(`Invalid Longitude & Latitude array for item ${item.id}`);
           return null;
         }
-        coordinates.push(latLngArray[0], latLngArray[1]);
+        coordinates.push(Number(latLngArray[0]), Number(latLngArray[1]));
       } else if (config.location_type === "geojson_field") {
         try {
           const geojson = item.fields.find(
@@ -264,3 +282,37 @@ const filterFields = (
   }
   return filteredFields;
 };
+
+const processProperties = (
+  originalFields: ItemField[],
+  displayFieldKeys: string[],
+  titleHiddenFieldKeys: string[]
+) => {
+  const fieldsToProcess = filterFields(originalFields, displayFieldKeys).map(
+    (field) => ({
+      ...field,
+      hideTitle: titleHiddenFieldKeys.includes(field.key),
+    })
+  );
+
+  const result = [];
+  const byGroup = new Map();
+
+  for (const field of fieldsToProcess) {
+    if (field.group) {
+      const list = byGroup.get(field.group) || [];
+      list.push(field);
+      byGroup.set(field.group, list);
+    } else {
+      result.push(field);
+    }
+  }
+
+  for (const field of result) {
+    if (field.type === "group") {
+      field.children = byGroup.get(field.value) ?? [];
+    }
+  }
+
+  return result;
+};
diff --git a/src/shared/global.css b/src/shared/global.css
index 9bc2dbd..453fcf3 100644
--- a/src/shared/global.css
+++ b/src/shared/global.css
@@ -140,7 +140,7 @@ input[type="number"] {
 @layer utilities {
   .prose {
     @apply text-xs leading-relaxed max-w-none;
-    font-size: 12px;
+    font-size: 14px;
   }
 
   .prose p {