Use the selection piercing menu to select a specific GameObject from a location that has multiple GameObjects.
Large, complex scenes can have many GameObjects that occupy the same position with each other or GameObjects with meshes or geometry that overlap. The selection piercing menu lists all GameObjects that share the same position in screen space so you can select the GameObject you want. If you have a GameObject selected, you can also use the selection piercing menu to add another GameObject to your selection.
To open the selection piercing menu and select a GameObject that shares the same position in screen space with other GameObjects:
To add a GameObject to an existing selection: