OnePager Bundle includes a direct connection to Project Server (2007, 2010, 2013, 2016, 2019, and Project Server Subscription Edition) and to Project Online, including Project Pro for O365 and PWA. This direct connection lets you build timelines from one or several project plans without having to use Microsoft Project on the desktop as a go-between.
To do this, start OnePager and log into Project Server.
Once logged in, grab as many project plans as you'd like to show on your timeline:
OnePager will log into Project Server or PWA, import your project plan(s), and generate a timeline.