How to create a new Trello team?
Elegantt Pro's features are only available on the team boards you've selected while registering to Elegantt.com
Create a new team by clicking the "+" button at the right hand side of your Trello header.
The difference between a personal or business team is that a business team has Trello Business Class which is a paid subscription that provides additional tools for the team.
More informations on the Trello teams