Attachments Tab in Case Portal Page

Hello,

I am willing to add the attachments detail (available in Case page) to the Case Portal Page. I have created a replacing object on the BaseCase object and tried to add the following code to my client module: 

details: /**SCHEMA_DETAILS*/{
			"Files": {
				"schemaName": "FileDetailV2",
				"entitySchemaName": "CaseFile",
				"filter": {
					"detailColumn": "Case",
					"masterColumn": "Id"
				}
			}
		}/**SCHEMA_DETAILS*/,

and then added the following code on the diff:

diff: /**SCHEMA_DIFF*/[
{
				"operation": "insert",
				"name": "NotesFilesTab",
				"values": {
					"items": [],
					"caption": {
						"bindTo": "Resources.Strings.NotesFilesTabCaption"
					},
					"order": 2
				},
				"parentName": "Tabs",
				"propertyName": "tabs",
				"index": 3
			},
			{
				"operation": "insert",
				"name": "Files",
				"values": {
					"itemType": 2
				},
				"parentName": "NotesFilesTab",
				"propertyName": "items",
				"index": 0
			},
			{
				"operation": "insert",
				"name": "NotesControlGroup",
				"values": {
					"itemType": 15,
					"items": [],
					"caption": {
						"bindTo": "Resources.Strings.NotesGroupCaption"
					}
				},
				"parentName": "NotesFilesTab",
				"propertyName": "items",
				"index": 1
			},
			{
				"operation": "insert",
				"name": "Notes",
				"values": {
					"contentType": 4,
					"layout": {
						"column": 0,
						"row": 1,
						"colSpan": 24
					},
					"labelConfig": {
						"visible": false
					},
					"controlConfig": {
						"imageLoaded": {
							"bindTo": "insertImagesToNotes"
						},
						"images": {
							"bindTo": "NotesImagesCollection"
						}
					}
				},
				"parentName": "NotesControlGroup",
				"propertyName": "items",
				"index": 0
			},
			{
				"operation": "remove",
				"name": "Header"
			}
		]/**SCHEMA_DIFF*/,

but nothing is visible on the portal Case page.

Can you please help ?

Thank you