Here's how to do it (as of Aug 2020). After you have set up your business Onedrive account on your machine by installing the Onedrive desktop app, you can now "add an account" to your local machine, by following these steps:

1. left-click the OneDrive icon in the system tray
2. Left-click "More", then left-click "Settings" to open the onedrive settings window.
3. On the "Account" tab, left-click the "Add an account" button.
4. You will be presented with a login for your personal account. Enter your credentials for you personal Onedrive account here.
5. After clicking next, confirm the path that you want Onedrive to sync to on your local machine. Make sure this is different from your business OneDrive filepath.

Click through the remaining wizard steps, and you are done! In Windows Explorer, you should see 2 Onedrive entries in the treeview. Hope this helps!

Here's how to do it (as of Aug 2020). After you have set up your business OneDrive account on your machine by installing the OneDrive desktop app, you can now "add an account" to your local machine, by following these steps:

1. left-click the OneDrive icon in the system tray
2. Left-click "More", then left-click "Settings" to open the OneDrive settings window.
3. On the "Account" tab, left-click the "Add an account" button.
4. You will be presented with a login for your personal account. Enter your credentials for you personal OneDrive account here.
5. After clicking next, confirm the path that you want OneDrive to sync to on your local machine. Make sure this is different from your business OneDrive filepath.

Click through the remaining wizard steps, and you are done! In Windows Explorer, you should see 2 OneDrive entries in the treeview.