How to set the index in the upper left corner of mobile phone flush?

The steps to set the flush index in the upper left corner of the mobile phone are as follows:

1. Open the Flush application and log in to your account.

2. Find the "Optional" button in the navigation bar at the bottom of the homepage or flush, and click to enter the "Optional" page.

3. On the Optional page, you can see the list of optional stocks or indexes that have been added.

4. Click the "Edit" button in the upper right corner of the page to enter the editing mode.

5. In edit mode, you can select the index or stock to be capped. After clicking the corresponding option, a check box or a drag handle will appear.

6. If you want to display the index at the top of the upper left corner, you can click the check box behind the index.

7. If you want to adjust the order of indexes, you can click the drag handle after the corresponding index and drag it to the required position.

8. If you want to delete an index, you can directly click the Delete button (usually an "X") behind the index.