How To Offset UE4 Pop-Up Notifications
I made a tutorial about how to move the notifications that the Unreal Engine editor can spew in case you... need to move them.
Basically, just modify the following in Engine\Source\Runtime\Slate\Private\Framework\Notifications\NotificationManager.cpp:
namespace NotificationManagerConstants
{
// Offsets from the bottom-right corner of the work area
const FVector2D NotificationOffset( 15.0f + 1520.0f, 15.0f + 360.f);
}