You can now use your Autodesk ID to access multiple Autodesk websites in the cloud, including your Autodesk 360 account.
Your Autodesk Navisworks Subscription may entitle you to extra Autodesk 360 benefits, including more storage. If you haven't enabled these additional benefits already, on the Autodesk 360 Home page, click Enable. Then, either sign in from an Autodesk desktop product, or enter the serial number for a product currently on Subscription.