You are probably thinking of data links.
Data links are links that open when you actually click in a panel. To get different links by field or table column, use field configuration overrides. Field overrides are exactly the same as field configuration options, but they apply only to one field rather than the entire table or visualization.
Field tab data link = Links all columns in your table
Override tab data link = Links one column in your table
Btw, if any part of the doc is not clear or can be improved, please file an issue or PR. This is a new feature, so we are still trying to get the docs to be the most useful for our users!