Only the administrators of the accounts have access to this feature. To create an account is to give the possibility to someone else (team member) to access the Sharing-Data interface on your behalf. The new user's password will be sent directly to him by email (with all necessary information on how to go on the interface). But it is the account adminstrator that gives the new user its rights and access to the Sharing-Data features. Of course, no one can create a new account to give rights that are superior to his own. Of course, the person who originally created the account has the maximum rights.