X-Plane Scenery--JB Objects Collection. A collection of 65 objects made in SketchUp. Developers should feel free to re-use in their sceneries without having to mention credits. To use: Drop the folders on your hard disk. In Overlay Editor simply import the object into your scenery. Includes the Sketch-Up files if people wish to make changes to the objects and pictures of the objects. To view the objects simply set the pictures folder to view thumbnails. By Jacques Brault.