OnePager Pro supports a direction connection to Project Server (2007, 2010, 2013, 2016) and to Project Online. This means that you can build reports from one or multiple project plans without having to download your plans to the desktop, or having to check them out in Microsoft Project Professional first.
Simply launch OnePager and log into Project Server or Project Online. Once connected, select as many project plans as you'd like to include in your report:
OnePager will log into Project Server or Project Online, import your project plan(s), and build a report for you without you having to do anything in Microsoft Project directly.