OneDrive in Drives Toolbar?

Looking for a quick way to access the OneDrive folder whilst in dual vertical display, currently have it saved in my favourites folder list. Is it possible to add OneDrive to the list of drives in the drives toolbar?

Despite its name, OneDrive is a folder rather than a drive, so it wouldn't automatically appear in the list of drives.

You can add a button for any folder to your toolbar by dragging the folder to it while in Customize mode.