Modules may be added to Logic Invoice to enhance its functionalities. All modules that you have uploaded correctly to your site can be installed and managed here.
All extensions related to payments will be shown here in the Payments page. You may manage all your payment extensions from this page.
All the categories that you have created will be listed here.
All extensions related to the calculation of the total amount will be listed here. You will be able to manage all these extensions from this page.