GP 2013 R2 is radically different from the original GP 2013. It looks different, and it has some killer new features that people really want. But it is different and I explore that over at MSDynamicsWorld in Microsoft Dynamics GP 2013 R2: Think Different
Microsoft Dynamics GP 2013 R2: Think Different | MSDynamicsWorld.com
Off-Topic & MiscellaneousGP 2013
Archived post from 2014. Dynamics GP and the links it points to have changed since; check current documentation before relying on version-specific steps.