No add-in is required to launch Granta EduPack from within Ansys Discovery.
If you have both Granta Selector and Granta EduPack installed, Discovery will launch Granta Selector.
You will be prompted to save any changes you have made to the selection project when closing Granta EduPack. Note that these changes (and therefore selection stages and charts) will not be saved in Ansys Discovery.
Data exported to Ansys Discovery from Granta EduPack must be saved in your Shared or Local material library locations before you can view the materials in Discovery.
The default local library location is C:\Users\<yourusername>\AppData\Local\Ansys_Inc\Discovery\LocalMaterialLibrary\.
The materials list should update automatically. If your exported materials are not visible: