Google announced that you can now group together multiple properties within the Google Search Console, so you can get aggregate data in the Search Analytics report.
The main purpose is because Google Search Console has always reported Search Analytics data — such as impressions, clicks and CTR — on a property-by-property basis. And since each property had to be added individually — such as the HTTP vs. HTTPS version of your site or the WWW vs. the non-WWW version, your apps and so on — there was no quick way to get a snapshot of the whole site in one report.
With Google Search Console Sets, you can now create sets of and then see all the Search Analytics data for that one set in one single report.
Mobile app, mobile website, desktop website — how do you track their combined visibility in search? Until now, you’ve had to track all of these statistics separately. Search Console is introducing the concept of “property sets,” which let you combine multiple properties (both apps and sites) into a single group to monitor the overall clicks and impressions in search within a single report.
To create sets, just log in to Google Search Console and click the “create a set” button at the top right. Then you will be given this dialog to choose a set name and the properties you want to add to it:
When you group the set, it will display in your overview section as a “property set.” Here is a screen shot:
This will only lump together the Search Analytics report for now. Keep in mind, you probably do want to spend time not just looking at your sets but also individual properties to properly debug issues and do more detailed reporting. But this is a feature request that many many webmasters and publishers have been asking for, for a long time.