You who are a group administrator can hand over your group to someone else who is a member of the group. How to use:

• Go to Group settings for the group.

• Choose the person who will become the administrator instead of you in the drop-down list of group members

• Give yourself one of the roles offered in the group

• Click on UPDATE 

If you then want to leave the group, do the following:

• Go to the Members tab

• Click on the menu to the right of your name and
• Choose Leave group
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