Hey @user00758 - Within Analysis workspace, there are 3 dimensions, Search Engine, Search Engine - Natural & Search Engine - Paid.

- Search engine: The search engine used to reach your site, regardless of if it is paid or natural.
- Search engine - paid: The search engine used to reach your site, which matched paid search detection.
- Search engine - natural: The search engine used to reach your site, which did not match paid search detection.
You can use this dimension with Visits metric to get the data you are looking for. Hope it helps