Your frustration is completely warranted! There is nothing more tedious than pulling up multiple UI’s to gather collective reporting.
Our wonderful sovrn engineers are in the process of building out a tool that caters to this exact need. Within your Meridian account, along the left-hand toolbar, you should see a Reporting tab. Here you will find the Unified Reporting tool. sovrn Unified Reporting allows you to view all of your reporting data directly in the Meridian dashboard by connecting to multiple partner API’s. We currently have 3 providers integrated (sovrn, AdSense, and OpenX) and are adding additional partners each month. Additionally, we are working on providing header bidding data directly in the Meridian dashboard as well. That functionality will be available at some point in Q2.
Hope this helps!