A new feature added to the new Google Search Console is the ability to filter your performance reports to only show differences of X value. So for example, if you want to only show URLs that dropped or gained in ranking position in the Google Search Results by five or more positions, you can do that.
This was first spotted by Dan Shure who posted this on Twitter. Here is his screen shots, but I see it myself in my own Search Console.
After you load the new performance report, at the top right of that report are three vertical lines in the shape of a triangle. Click on that to access these new filters.
Who knows if this will stick but the feature is now available in this new version of the Google Search Console.
Forum discussion at Twitter.