diff --git a/demo/scripts/controlsV2/roosterjsReact/inputDialog/component/InputDialog.tsx b/demo/scripts/controlsV2/roosterjsReact/inputDialog/component/InputDialog.tsx
index 2307e35c966..9576cdd066b 100644
--- a/demo/scripts/controlsV2/roosterjsReact/inputDialog/component/InputDialog.tsx
+++ b/demo/scripts/controlsV2/roosterjsReact/inputDialog/component/InputDialog.tsx
@@ -1,9 +1,9 @@
 import * as React from 'react';
 import InputDialogItem from './InputDialogItem';
 import { DefaultButton, PrimaryButton } from '@fluentui/react/lib/Button';
-import { Dialog, DialogFooter, DialogType } from '@fluentui/react/lib/Dialog';
 import { getLocalizedString } from '../../common/index';
 import { getObjectKeys } from 'roosterjs-content-model-dom';
+import { Dialog, DialogFooter, DialogType, IDialogContentProps } from '@fluentui/react/lib/Dialog';
 import type { DialogItem } from '../type/DialogItem';
 import type {
     CancelButtonStringKey,
@@ -26,6 +26,7 @@ export interface InputDialogProps<Strings extends string, ItemNames extends stri
     ) => Record<ItemNames, string> | null;
     onOk: (values: Record<ItemNames, string>) => void;
     onCancel: () => void;
+    rows?: number;
 }
 
 /**
@@ -34,11 +35,25 @@ export interface InputDialogProps<Strings extends string, ItemNames extends stri
 export default function InputDialog<Strings extends string, ItemNames extends string>(
     props: InputDialogProps<Strings, ItemNames>
 ) {
-    const { items, strings, dialogTitleKey, unlocalizedTitle, onOk, onCancel, onChange } = props;
-    const dialogContentProps = React.useMemo(
+    const {
+        items,
+        strings,
+        dialogTitleKey,
+        unlocalizedTitle,
+        onOk,
+        onCancel,
+        onChange,
+        rows,
+    } = props;
+    const dialogContentProps: IDialogContentProps = React.useMemo(
         () => ({
             type: DialogType.normal,
             title: getLocalizedString(strings, dialogTitleKey, unlocalizedTitle),
+            styles: {
+                innerContent: {
+                    height: rows ? '200px' : undefined,
+                },
+            },
         }),
         [strings, dialogTitleKey, unlocalizedTitle]
     );
@@ -80,6 +95,7 @@ export default function InputDialog<Strings extends string, ItemNames extends st
                         currentValues={currentValues}
                         onEnterKey={onSubmit}
                         onChanged={onItemChanged}
+                        rows={rows}
                     />
                 ))}
             </div>
diff --git a/demo/scripts/controlsV2/roosterjsReact/inputDialog/component/InputDialogItem.tsx b/demo/scripts/controlsV2/roosterjsReact/inputDialog/component/InputDialogItem.tsx
index 4c642972037..69a62c97249 100644
--- a/demo/scripts/controlsV2/roosterjsReact/inputDialog/component/InputDialogItem.tsx
+++ b/demo/scripts/controlsV2/roosterjsReact/inputDialog/component/InputDialogItem.tsx
@@ -15,6 +15,7 @@ export interface InputDialogItemProps<Strings extends string, ItemNames extends
     currentValues: Record<ItemNames, string>;
     onEnterKey: () => void;
     onChanged: (itemName: ItemNames, newValue: string) => void;
+    rows?: number;
 }
 
 const classNames = mergeStyleSets({
@@ -33,7 +34,7 @@ const classNames = mergeStyleSets({
 export default function InputDialogItem<Strings extends string, ItemNames extends string>(
     props: InputDialogItemProps<Strings, ItemNames>
 ) {
-    const { itemName, strings, items, currentValues, onChanged, onEnterKey } = props;
+    const { itemName, strings, items, currentValues, onChanged, onEnterKey, rows } = props;
     const { labelKey, unlocalizedLabel, autoFocus } = items[itemName];
     const value = currentValues[itemName];
     const onValueChange = React.useCallback(
@@ -64,6 +65,8 @@ export default function InputDialogItem<Strings extends string, ItemNames extend
                     onChange={onValueChange}
                     onKeyPress={onKeyPress}
                     autoFocus={autoFocus}
+                    rows={rows}
+                    multiline={!!rows}
                 />
             </div>
         </div>
diff --git a/demo/scripts/controlsV2/roosterjsReact/inputDialog/utils/showInputDialog.tsx b/demo/scripts/controlsV2/roosterjsReact/inputDialog/utils/showInputDialog.tsx
index 4a69eb5d869..1e7746ae38e 100644
--- a/demo/scripts/controlsV2/roosterjsReact/inputDialog/utils/showInputDialog.tsx
+++ b/demo/scripts/controlsV2/roosterjsReact/inputDialog/utils/showInputDialog.tsx
@@ -28,7 +28,8 @@ export function showInputDialog<Strings extends string, ItemNames extends string
         changedItemName: ItemNames,
         newValue: string,
         currentValues: Record<ItemNames, string>
-    ) => Record<ItemNames, string> | null
+    ) => Record<ItemNames, string> | null,
+    rows?: number
 ): Promise<Record<ItemNames, string> | null> {
     return new Promise<Record<ItemNames, string> | null>(resolve => {
         let disposer: null | (() => void) = null;
@@ -49,6 +50,7 @@ export function showInputDialog<Strings extends string, ItemNames extends string
                 onOk={onOk}
                 onCancel={onCancel}
                 onChange={onChange}
+                rows={rows}
             />
         );
 
diff --git a/demo/scripts/controlsV2/sidePane/contentModel/ContentModelPane.tsx b/demo/scripts/controlsV2/sidePane/contentModel/ContentModelPane.tsx
index b7d4e006b90..a492c87dd4b 100644
--- a/demo/scripts/controlsV2/sidePane/contentModel/ContentModelPane.tsx
+++ b/demo/scripts/controlsV2/sidePane/contentModel/ContentModelPane.tsx
@@ -2,6 +2,7 @@ import * as React from 'react';
 import { ContentModelDocument } from 'roosterjs-content-model-types';
 import { ContentModelDocumentView } from './components/model/ContentModelDocumentView';
 import { exportButton } from './buttons/exportButton';
+import { importModelButton } from './buttons/importModelButton';
 import { refreshButton } from './buttons/refreshButton';
 import { Ribbon, RibbonButton, RibbonPlugin } from '../../roosterjsReact/ribbon';
 import { SidePaneElementProps } from '../SidePaneElement';
@@ -25,7 +26,7 @@ export class ContentModelPane extends React.Component<
     constructor(props: ContentModelPaneProps) {
         super(props);
 
-        this.contentModelButtons = [refreshButton, exportButton];
+        this.contentModelButtons = [refreshButton, exportButton, importModelButton];
 
         this.state = {
             model: null,
diff --git a/demo/scripts/controlsV2/sidePane/contentModel/buttons/importModelButton.ts b/demo/scripts/controlsV2/sidePane/contentModel/buttons/importModelButton.ts
new file mode 100644
index 00000000000..5caf0efd76b
--- /dev/null
+++ b/demo/scripts/controlsV2/sidePane/contentModel/buttons/importModelButton.ts
@@ -0,0 +1,45 @@
+import { isBlockGroupOfType } from 'roosterjs-content-model-core';
+import { showInputDialog } from '../../../roosterjsReact/inputDialog/utils/showInputDialog';
+import type { RibbonButton } from '../../../roosterjsReact/ribbon/type/RibbonButton';
+
+/**
+ * @internal
+ * "Import Model" button on the format ribbon
+ */
+export const importModelButton: RibbonButton<'buttonNameImportModel'> = {
+    key: 'buttonNameImportModel',
+    unlocalizedText: 'Import Model',
+    iconName: 'Installation',
+    isChecked: formatState => formatState.isBold,
+    onClick: (editor, _, strings, uiUtilities) => {
+        showInputDialog(
+            uiUtilities,
+            'buttonNameImportModel',
+            'Import Model',
+            {
+                model: {
+                    autoFocus: true,
+                    labelKey: 'buttonNameImportModel' as const,
+                    unlocalizedLabel: 'Insert model',
+                    initValue: '',
+                },
+            },
+            strings,
+            undefined /* onChange */,
+            10 /* rows */
+        ).then(values => {
+            try {
+                const importedModel = JSON.parse(values.model);
+                if (isBlockGroupOfType(importedModel, 'Document')) {
+                    editor.formatContentModel(model => {
+                        model.blocks = importedModel.blocks;
+                        model.format = importedModel.format;
+                        return true;
+                    });
+                }
+            } catch (e) {
+                throw new Error('Invalid model');
+            }
+        });
+    },
+};