How to assign Tools menu for Download/upload center for supplier in SNC Web portal

Hello SNC experts, We have SMI and PO scenarios implemented with SNC 7.0. I am trying to give access to download and uploading functionality of planned receipts from excel file under Tools menu to my suppliers. Currently the Tools > file Transfer > Download/Upload menu is showing. I appreciate if you experts can guide me with the steps to follow In order to suppliers to get this menu on the web portal. Our IT guy who developed the BADI for file upload/download having the tools menu as he has more roles than a supplier. Not sure what role it's in or is it BADI? Thanks in advance Raj Kakarala