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

Using the Frame Time Offset you can delay (positive number) or predict (negative number) the placement of the tracker.
You can also use the smoothing Frame to smooth the placement of your object.
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