Global Objects
Global objects are objects which are globally accessible; that is, they are usable by all Scenes.
Setting an object as global
An object may be made global by opening an object's menu in the Scene Editor -> Objects panel and clicking Set as a global object.
Danger
Once an object is made global, it cannot be undone. Please take the time to save a copy of your project before making an object global, in case you'd like to reverse the change.