Bot connection
Enter the BotFather token. It will be verified before it is saved.
Promote a member to admin in every active group
The person must already be a member of each group, and the bot needs admin rights with "add new admins" enabled there. This runs in the background and can take a while across many groups.
Managed groups
No groups have been synchronized yet. Add the bot as an administrator, send a group message, then sync.