How to add more than 1 Twitter integration

I can see in the help manuals that if you are a monthly subscriber as we are, that you can add more than 1 Twitter integration to your account.

1. Can I add multiple accounts for Facebook, Twitter etc?

You can add an account each for Facebook, Twitter and LinkedIn as a free user. If you wish to add multiple accounts for each social media network, you need to be in Monthly Subscription plan.

However, when I am looking at our integrations page, I cannot see an option to allow me to add more than 1 Twitter account. Can you point me in the right direction please. Thank you.