[doc] update bulletin help docs for editing and metric-tree selection (#4177)

Author: Duansg

home/docs/help/bulletin.md

@@ -9,20 +9,40 @@ keywords: [bulletin, custom]
 
 ## Add Bulletin Item
 
-1. Click `Add New Bulletin Item`, enter the `Bulletin Name`, scroll down to select the `Monitoring Type`, select the associated `Monitoring Task Name`, You can filter `Monitor Task Name` by `Label`, and then select the `Monitoring Metrics` you want to show in the shuttle box.
+1. Click the `New` button in the toolbar to open the bulletin creation dialog.
 
-2. Click `OK` button to finish creating the customized bulletin.
+2. Enter the `Bulletin Name`, select the `Monitor Type`, and then select the associated `Monitor Task Name`.
 
-    ![new-bulletin](/img/docs/help/bulletin-1.png)
+    - The `Monitor Task Name` is a multi-select field. Type in its search box to filter monitors by **name, label key, or label value**; each option also shows its labels as `key:value` tags.
 
-### Viewing Multiple Bulletins
+3. In the `Monitor Metrics` tree, check the metrics you want to show. The tree is grouped by metric, and checking a parent node selects all of its fields at once.
 
-1. Click the name of the bulletin in the tab to view the details of that bulletin.
+4. Click the `OK` button to finish creating the customized bulletin.
 
-### Deleting Bulletins
+   ![new-bulletin](/img/docs/help/bulletin-1.png)
 
-1. Click the `Delete Bulletin Item` button to delete the current bulletin. 2.
+## Edit Bulletin Item
 
-2. Click the `Batch delete Bulletin Items` button to delete selected bulletins in a batch.
+1. Click a bulletin name in the tab bar to make it the current bulletin.
 
-    ![bulletin](/img/docs/help/bulletin-2.png)
+2. Click the `...` (more) button in the toolbar and choose `Edit`. The dialog opens pre-filled with the current bulletin's name, monitor tasks, and selected metrics.
+
+    - The `Monitor Type` cannot be changed while editing. To use a different monitor type, create a new bulletin instead.
+
+3. Adjust the name, monitor tasks, or metrics as needed, then click `OK` to save.
+
+   ![edit-bulletin](/img/docs/help/bulletin-2.png)
+
+## Viewing Multiple Bulletins
+
+1. Each bulletin appears as a tab. Click the name of a bulletin in the tab bar to view its details.
+
+   ![dashboard-bulletin](/img/docs/help/bulletin-3.png)
+
+## Deleting Bulletins
+
+1. Select the bulletin you want to remove, click the `...` (more) button in the toolbar, and choose `Delete Bulletin` to delete the current bulletin.
+
+2. Choose `Batch Delete Bulletin` from the same `...` menu to select and delete multiple bulletins at once.
+
+   ![bulletin](/img/docs/help/bulletin-4.png)

home/i18n/zh-cn/docusaurus-plugin-content-docs/current/help/bulletin.md

@@ -1,28 +1,48 @@
 ---
-id: bulletin  
-title: 自定义看板      
-sidebar_label: 自定义看板   
-keywords: [看板, 自定义]
+id: bulletin
+title: 自定义看板
+sidebar_label: 自定义看板
+keywords: [ 看板, 自定义 ]
 ---
 
-> 自定义监控看板,以表格形式展示某种监控的自选指标。
+> 自定义监控看板，以表格形式展示某种监控的自选指标。
 
 ## 新增看板项
 
-1. 点击新增看板项, 输入`看板名称`, 下拉选择`监控类型`, 可根据`标签`对`监控任务名称`进行筛选，再选择关联的`监控任务名称`, 最后在穿梭框中选择需要展示的`监控指标`。
+1. 点击工具栏上的`新增`按钮，打开看板创建弹窗。
 
-2. 点击`确定`按钮, 即可完成自定义看板的创建。
+2. 输入`看板名称`，选择`监控类型`，再选择关联的`监控任务名称`。
 
-    ![new-bulletin](/img/docs/help/bulletin-1.png)
+    - `监控任务名称`为多选项，可在其搜索框中按**名称、标签键或标签值**进行筛选；每个选项还会以 `键:值` 标签的形式展示其标签。
 
-### 查看多个看板
+3. 在`监控指标`树中勾选需要展示的指标。树按指标分组，勾选父节点即可一次性选中其下所有字段。
 
-1. 点击标签页中的看板名称, 即可查看该看板的详细信息。
+4. 点击`确定`按钮，即可完成自定义看板的创建。
 
-### 删除看板项
+   ![new-bulletin](/img/docs/help/bulletin-1.png)
 
-1. 点击`删除看板项`按钮, 即可删除当前看板项。
+## 编辑看板项
 
-2. 点击`批量删除看板项`按钮, 即可选择批量删除选中的看板项。
+1. 在标签页中点击某个看板名称，将其设为当前看板。
 
-    ![bulletin](/img/docs/help/bulletin-2.png)
+2. 点击工具栏上的`...`（更多）按钮，选择`编辑`。弹窗会自动回填当前看板的名称、监控任务和已选指标。
+
+    - 编辑时`监控类型`不可修改。如需使用其他监控类型，请新建看板项。
+
+3. 按需调整名称、监控任务或指标，然后点击`确定`保存。
+
+   ![edit-bulletin](/img/docs/help/bulletin-2.png)
+
+## 查看多个看板
+
+1. 每个看板对应一个标签页，点击标签页中的看板名称，即可查看该看板的详细信息。
+
+   ![dashboard-bulletin](/img/docs/help/bulletin-3.png)
+
+## 删除看板项
+
+1. 选中要删除的看板，点击工具栏上的`...`（更多）按钮，选择`删除看板项`，即可删除当前看板项。
+
+2. 在同一个`...`菜单中选择`批量删除看板项`，即可选择并一次性删除多个看板项。
+
+   ![bulletin](/img/docs/help/bulletin-4.png)