2. There you have the option "+Add children".
3. Enter the child's surname and name and choose him/her from the admin's pool. Repeat until you have selected all children you wish to add.
4. Click on "Continue". Now you can choose if the already connected users for these children should be added automatically or if you want to generate new invitation codes for this group.
5. You can now download the new invitation codes. For more help related to this topic, please click here: How can I generate/re-print the invitation codes?