To create a sub-account simply log in to your dashboard (V2) and click on your current account name in the top left corner. In the dropdown click on the “Create New Account” button.
You will be presented with a popup modal where you can set a globally unique name for your new sub-account, an icon that will present your new sub-account (like avatar).
You can optionally set storage and bandwidth quota to limit the usage of your new sub-account.
Keep in mind that your account name will be used in your media URLs like teamrocket.publit.io instead of media.publit.io.
After you are done filling the form, simply click the "Create" button and your sub-account will be created and you will automatically be switched to it.