RealityHub 1.2 Controlling Unreal Engine Current: Advanced Preview Monitor for Unreal Engine Advanced Preview Monitor for Unreal Engine Features of the Advanced Preview Monitor (APM) for Unreal Engine are the same as the RealityEngine, but it requires a slightly different workflow to operate. To activate the APM:Activate the Nodegraph/Actions ModuleClick on the MONITOR button and select a channelFor more details, visit: Advanced Preview Monitor ×