Hello ; In order to edit a 3D library (deleting, importing, updating ect..) you need to follow these steps : 1. The SHIFT+F shortcut opens the component library dialog box 2. Switch to “PCB 3D library” and “WorkSpace” 3. Right click can edit and delete 3D library  More details on how to properly import 3D model is in the following link : [https://docs.easyeda.com/en/PCBLib/PCB-3DLib-Import/index.html](https://docs.easyeda.com/en/PCBLib/PCB-3DLib-Import/index.html)

Thank you, problem solved.