To manage collaborators:
1. Open label details by clicking on the label name:
2. Enter the collaborator's email ID in the field at the bottom of the screen. Click 'Add' (Note: Only folder admins invite other users. The person who has created the label is the admin by default, but can mark other participants also as admins)
3. You can manage a collaborator here. You can make the collaborator an admin. He can then add and remove any person from the shared label. The same shared label can have multiple admins. You can also remove them from the label.
Here are the traffic signals visible on the console.
a. Delete collaborator
b. Add Admin
4. You can also Leave labels, remove collaborators, stop sharing emails and delete Tandem labels completely as show in the following links:
a. Stop sharing/Remove a collaborator
b. Deleting a label from Tandem completely
c. Leaving a shared label