1. Log in to WeChat with your mobile phone or computer, select the "Me" tab, go to my homepage, select Settings, and go to the Settings homepage;
2. On the home page of settings, find "General" and click to enter the home page of General;
3. On the general homepage, find "Function" and click to enter the function page;
4. Find "Public Assistant" on the function page, and click to enter the public assistant setting page;
5. On the group sending assistant function setting page, find "Start group sending" and click to enter the group sending page;
6. On the mass sending information page, find the "New Mass Sending" button and click "New Mass Sending";
7. On the group sending page, you can see the list of people who want to send a group, and select the WeChat contacts who want to send a group;
8. Slide the screen to find "Next" and click to enter the message input page;
9. Enter a message in the input box, and then click Send.