Vendor listings are unique in that, unlike most lists and menus in Orchid POS software, they are not created or edited from the Table Editor.
Vendors are contacts, so can be created, edited, and deleted from Inventory > Purchase > Vendors.
To see your full vendor list, you can simply click Search with the vendor filter already selected.
To search by name, use the First Name/Vendor field on the Keyword Based tab.
You can also create a new vendor from any part's details page. From the vendor drop down menu, select Add New.