LS NAV - Add columns to a lookup for additional info or filtering

• From Lookup, Right click>Lookup Properties>Data Table Id>Three Dots
• Edit the POS Data Table Columns to change which columns you want to see instead
• Special Field type: FindByNameField if it's a text search field you need

OR 

Build a custom lookup

https://www.archerpoint.com/blog/Posts/dynamics-nav-how-program-lookups