If you have purchased HyperDone subscription for team (more than 1 user) you can administer these accounts from Premium administration section.
Click on arrow bellow your name and choose “Premium administration” button.
Windows will open where you can assign premium accounts to users or revoke premium from accounts you already assigned before.
To assign premium account to someone just click “Assign premium to” button and enter persons email address.
To revoke premium from some account find that account in list than click “Remove” button and confirm action.