Instead of creating multiple target and links, this placement mode enable you to place a 3D object at the same position of a tracker. You need to create a Tracking System To visualize tracked points using a tracking device Read More to use this placement mode Simply pick a Tracker a Tracker represent a real tracker and is part of a Tracking System Read More in the drop-down list
When making Set Extension and AR you may need to adjust the Camera Tracking Data Latency Sync the Camera Video Input with the Tracking Data Read More