To enable the auto-save function in 2020 Fusion, please follow these steps.
1. Within 2020 Fusion, access the File Options.
2. Navigate to the Save tab.
3. To enable auto-save, check the box next to "Auto Save."
4. To define how often the plan will auto save, insert a numerical value in the "Minutes before change" box.
5. Click on OK to apply these changes.
6. Close and reopen 2020 Fusion to have these changes take effect.