If you have access to the Access Control module in Back-office, you can grant access to different modules for a specific role.
This process can be followed to change the modules a specific role has access to.
STEPS:
1. In Advantage Back-office, click the left sidebar menu.
2. Click on the System menu.
3. Open the Access Control module.
4. Click on the find button in the navigation bar:
5. Click on the role in the picklist fly-out that you want displayed. The picklist then closes and the information of the selected role is displayed.
6. Click on the Grant / Deny access tab.
NOTE: Denied modules / screens for the specific role will be displayed in the left-hand column, and allowed modules / screens for the specific role will be displayed in the right-hand column.
NOTE: If you would like to remove access from a specific role, click on the following link: How do I remove / deny access to applications / modules for a role in Access Control?
7. Click on a specific module in the "Deny Access" column:
8. Click on the single arrow pointing to the right towards the "Grant Access" block: 
The double arrow can be used to move ALL the modules to the "Grant Access" block, if required. 
9. Press the "Tab" button on your keyboard.
10. Click on the save button in the navigation bar:
NOTE: If you would like to know how to add a user to a specific role, click on the following link: How do I add users to a role in Access Control?
NOTE: If you would like to know how to remove a user from a specific role, click on the following link: How do I remove users from a role in Access Control?