STEP 0 - Ensure/add user to the JWDanforth 365 group (this grant's view access)
STEP 1 - Connect to the user's device via Splashtop

STEP 2 - Open a broswer and copy/paste the link below into the URL bar

John W. Danforth Project Management Manual (365)

STEP 3 - Click Next

STEP 4 - Click Continue to Microsoft SharePoint Online

STEP 5 - It will now load the OneNote Notebook in the browser

STEP 6 - Click the Viewing menu and select Open in Desktop to launch in the OneNote client, which will then keep it locally on the device

STEP 7 - SUCCESS!