To view the inbox from two email accounts simultaneously on your Mac, you can follow these steps:
1. Open the Apple Mail application on your MacBook Pro.
2. In the Mail app's menu, click on "Mail" in the top left corner.
3. Select "Preferences" from the drop-down menu.
4. In the Preferences window, go to the "Viewing" tab.
5. Look for the "Show messages from" section.
6. Choose the option "All Inboxes" from the drop-down menu.
Once you select "All Inboxes," you'll be able to see the combined view of both your email accounts' inboxes in one place, similar to how it appears on your iPhone.
If you need more detailed instructions or have any other questions, feel free to ask. Additionally, for official documentation, you can visit the Mail section on the Apple website: [apple.com/mail](https://www.apple.com/mail).