If you look at the UDT sample code, you should find a method called OnNewTrackableSource() in the Event Handler script attached to the UserDefinedTargetBuilder prefabs.

There you can create a target and then dynamically attach an augmentation object of your choice.

hi All and mod.

could you please answer the question, how to load specific object to random target by UDT ??

thanks for pointing me to the page, but i was wondering how to show different object to different target defined by the user ?

thanks

Yes - take a look at our User Defined Targets sample. https://developer.vuforia.com/resources/sample-apps/user-defined-target-sample-app