Linked columns: showing a field from a related table — Add one
Open Columns in the view toolbar and choose Add linked column. A picker opens on the table you’re looking at: click a relationship to step across it, keep clicking to go further, and tap a field to finish. You can also pick the linked record’s own name rather than a field on it.
It’s the same picker, on the same routes, that the filter bar uses for Filter by a linked field — deliberately, because they answer two halves of one question. There’s no route syntax to learn and nothing to type.
The column appears immediately, headed with the route it came from (Company → Region). Rename it from the column’s own menu: a route reads long in a narrow heading, and once the column is on screen you usually just want it called Region.