You are a group administrator in the chat group?
- Click on the chat name of the group chat.
- Click on the participants list.
- Select "+ Add".
- Now you can search for the respective persons and add them to the group by clicking on the checkbox.
- Finally, select "Add".
You are not a group administrator in the chat group?
Contact an administrator in the chat group and ask him/her to add you or another person to the group as described above.
You can find out who is an administrator in a group by clicking on the picture of the group chat and then clicking on Participants. After the name of the administrator, you will see the addition "-Admin". If you are not part of the group, ask a colleague.