App bar is a UI component that is used together with the bounds control script. It adds button controls to an object with the intent to manipulate it. Using the 'Adjust' button, the bounds control interface for an object can be de- / activated. The "Remove" button should remove the object from the scene.
How to use app bar
Drag and drop
AppBar (Assets/MRTK/SDK/Features/UX/Prefabs/AppBar/AppBar.prefab) into the scene hierarchy. In the inspector panel of the component, assign any object with a bounds control as the Target Bounding Box to add the app bar to it.
Important: The bounds control activation option for the target object should be 'Activate Manually'.