the steps are as follows:

1. open Tik Tok APP and log in to your account.

2. find and click the "me" option on the bottom navigation bar.

3. On the personal homepage, slide the screen to the right, find and click the "Live Room" button.

4. After entering the live broadcast room, click the plus icon at the top of the screen to open the live broadcast settings page.

5. in the live broadcast settings page, select and click the "jiugongge live broadcast" option.

6. You will see the layout of nine grids displayed on the panel. You can add different live content to each grid or invite other users for cooperative live broadcast.

7. Click "Add" on each grid and select the content type to be broadcast live, such as goods, food, travel, etc.

8. according to the prompts, add live content, product links or sharing in the corresponding grid.

9. To invite other users to join the cooperative live broadcast, you can click "Invite" in the corresponding grid and enter the user name of Tik Tok to invite.

1. Click the "Start Live" button at the bottom of the screen to start the Tik Tok Jiugongge live broadcast.