Customize toolbar in JavaScript (ES5) DocumentEditor control

How to customize existing toolbar in DocumentEditorContainer

DocumentEditorContainer allows you to customize(add, show, hide, enable, and disable) existing items in a toolbar.

• Add - New items can defined by CustomToolbarItemModel and with existing items in toolbarItems property. Newly added item click action can be defined in toolbarclick.
• Show, Hide - Existing items can be shown or hidden using the toolbarItems property. Pre-defined toolbar items are available with ToolbarItem.
• Enable, Disable - Toolbar items can be enabled or disable using enableItems

let toolItem: CustomToolbarItemModel = {
prefixIcon: "e-de-ctnr-lock",
tooltipText: "Disable Image",
text: "Disable Image",
id: "Custom"
};

//Initialize Document Editor Container component with custom toolbar item.
let container: DocumentEditorContainer = new DocumentEditorContainer({
toolbarItems: [toolItem, 'Undo', 'Redo', 'Separator', 'Image', 'Table', 'Hyperlink', 'Bookmark', 'Comments', 'TableOfContents', 'Separator', 'Header', 'Footer', 'PageSetup', 'PageNumber', 'Break', 'Separator', 'Find', 'Separator', 'LocalClipboard', 'RestrictEditing']
});

//To handle custom toolbar click event.
container.toolbarClick = (args: ClickEventArgs): void => {
switch (args.item.id) {
    case 'Custom':
        //Disable image toolbar item.
        container.toolbar.enableItems(4, false);
        break;
}
};

Note: Default value of toolbarItems is ['New', 'Open', 'Separator', 'Undo', 'Redo', 'Separator', 'Image', 'Table', 'Hyperlink', 'Bookmark', 'TableOfContents', 'Separator', 'Header', 'Footer', 'PageSetup', 'PageNumber', 'Break', 'InsertFootnote', 'InsertEndnote', 'Separator', 'Find', 'Separator', 'Comments', 'TrackChanges', 'Separator', 'LocalClipboard', 'RestrictEditing', 'Separator', 'FormFields', 'UpdateFields'].