URL Profiler allows you to access third-party link data from Majestic, Moz and Ahrefs - you need to input your API keys for each.
The Link Metrics setting option allows you to specify whether you want every metric available through their API, or simply the basic ones.
In most cases, the basic metrics are sufficient, however you can edit these settings to get all the data.
Full link metrics don't cost you any more API credits, they can simply make your spreadsheet exports a little more cumbersome to work with.