Yes, you can. To add new users to your company account, first select the "My Corporate" menu, then the "Group Profile" option. Then click on the corresponding "Company" option and select the "Users" option. After completing these steps, you will be asked to fill in the personal data of the user(s) you want to add. Note that there are different types of access you can provide to the user that you are adding: "Company Administrator" (has access only to the data of the company in which he/she is registered) or "Group Administrator" (has access to all companies in the group, not just the company in which he/she is registered).
Baggage is carried in the hold for free on all flights except for tap|discount. If so, please be advised that you may purchase this service in the next step.
If you are traveling with checked luggage and have a connecting flight in Brazil, the United States or Canada, be sure to collect your luggage for customs control in these countries. Then follow the directions and go to the luggage transfer point.