Select objects in the graphics window, you can use the Find in Navigator command to find that object in the Navigator.
Are you looking to find an entity in the Navigator? Finding objects in the Simulation Navigator
When you select objects in the graphics window, you can use the Find in Navigator command from right-click menu to locate and highlight that object in the Simulation Navigator. You can use the Find in Navigator command in FEM, assembly FEM, and Simulation files to find:
How to use Find in Navigator;