Why do you need identified links? Anyway, you can't get 100% do follow no matter what settings you're using on the tool. That's not specific to GSA Search Engine Ranker - it includes any advanced tool that can feed targets. Of course, it's not impossible if you're willing to create a link list yourself, but I don't think it's worth it, and you're going to lose a lot of high-quality nofollow links as well. Even 100% pure do follow is still impossible. Plus, using only do follow links isn't natural at all. Some people blindly believe that nofollow links have no value, which isn't true at all. Google mentioned that a few years back. On the other hand, if you look at high authority platforms where Google prefers - like Reddit subs, Quora, or even here on BHW - all links are automatically set as nofollow, and they still give power. That being said, if you want identified links, look for Links Plug. They offer a decent amount of GSA identified links per day, and I've used them a few times over the years. But if you have money to spend and you're looking for decent targets instead of quantity, I'd vouch for SER Links, GSA Link Surge (recently launched, I guess ..found it on a newsletter, and there are a lot of do follow links there, but it's a verified link list), and SER Verified Lists. Some links contain identified and verified links as well.
edited cause bhw seems to put ** when calls do follow togather lol not sure why