The Suppliers page
Manage suppliers of products and parts through this page.
Suppliers can be selected for products or parts on the Products page.
This is an optional category, adding suppliers is not mandatory.
Like the other screens - except for New RMA and Settings - this screen has a top part with a sortable / searchable grid with data records (your Suppliers in this case) and a bottom part in which the details of the selected record is loaded. Clicking an item in the top grid will load it's details in the bottom part.