Hi You will need only one binding. (One model and one gameobject) The gameobject will be used as parent of multiple objects (as many as you need). Then you will place this simple script that I wrote for you in the parent game object and set the objects you want to control sequentially. With this approach you can place the objects relative to its parent in the proper position, rotation and scale, when the parent changes relative to the marker they will also change relative to its parent. See the picture attached and the script. The script uses arrow keys to change the objects activation but you can use your own strategy. The tracker inspector may look different because I use the new version (available pretty soon) but is tha same idea.