回答

blockManager.add可增加组件。

<!DOCTYPE html>
<html>

<head>
    <meta charset="UTF-8">
    <link type="text/css" rel="stylesheet" href="//repo.bfw.wiki/bfwrepo/css/grapes.0.21.1.css">
    <script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/grapes.0.21.1.js"></script>
    <link type="text/css" rel="stylesheet" href="//repo.bfw.wiki/bfwrepo/css/grapesjs-component-code-editor.min.css">
    <script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/grapesjs-component-code-editor.min.js"></script>
    <style>
        body, html {
      margin: 0;
      height: 100%;
    }


.my-block {
  padding: 10px;
  background-color: #f2f2f2;
  border: 1px solid #ccc;
}

.title {
  font-size: 20px;
  color: red;
}

.description {
  font-size: 16px;
  color: #666;
}
    </style>
</head>

<body>

    <div id="gjs">

    </div>


    <script>
        const editor = grapesjs.init({
        	container: '#gjs',
          height: '100%',
          fromElement: true,
          storageManager: false,


  //...

        });

        const blockManager = editor.BlockManager;

blockManager.add('my-block', {
  label: 'My Block',
  category: 'Basic',
  content: '<div class="my-block"><h2 class="title">My Block</h2><p class="description">This is my custom block</p></div>',
  attributes: {
    // 在这里定义属性
    myAttribute: {
      // 属性的默认值
      default: 'default-value',
      // 属性的标签（显示在属性面板中）
      label: 'My Attribute',
      // 属性的类型（文本、颜色、下拉框等）
      type: 'text'
    }
  }
});
    </script>
</body>

</html>