The only way to add more accounts to the ID Vault "safe" list is to upgrade to the Premium Edition of the ID Vault service. To do this:

  1. Click to "Upgrade," when prompted, if you try to add an account above the 4 account limit;
  2. Click the ID icon in the computer system tray (the row of icons, usually at the bottom of the computer screen), Click on "Support," and then click to "Renew Now."

Note - some versions of the ID Vault Free Edition, offered through partnerships, offer a higher account limit, but none of the Free Edition versions offer the virtually unlimited account storage capability of the Premium Edition.