Sync two Google accounts when logged via Google

Under Manage Storage, I need to add a second Google Drive account folder (the whole reason I’m trying this service!) but the automatic storage addition tool thinks I’m adding the same Google Drive folder over and over and doesn’t show any other options. Maybe the problem is that I’m logged in via Google? Is there any way to add two completely different Google accounts (with different logins)?

A post was merged into an existing topic: How do I link multiple accounts of the same type?