You will not be able to apply for a second Zip Business Trade Plus account for the same business.
However, you can have a Zip Business Trade Plus account for each individually registered ABN, if you have more than one.
To apply for another one of your businesses, you will need to go through the application process again to be assessed for an account.
You are also able to have both a Zip Business Trade and a Zip Business Trade Plus application for the same business.