Hi, Happy New Year! I just bought the 2nd Minecraft account, it's installed and we are ready to play. The plan is to join my daughter and adventure together. Since she is already whitelisted (with my email address), I can't send another application. Is there a way to add a second username for the same email address to be whitelisted?
You have to create a whitelist application with a different email address. Most email providers allow you to put a plus '+' with an identifier after it to make an email alias. So for example, if your email was something@somewhere.com, you could make an alias something+whatever@somewhere.com, which would be acceptable.
