Use the Home tab > Collaborate panel to access the following options:
Use this option to display the Autodesk A360 website. Autodesk A360 is a cloud-based resource, which enables you to interact with other people and share information about projects. For example, you can use it to upload CAD model files so others can view your ideas and provide feedback.
Click Home tab > Collaborate panel > A360 to display the website in your preferred browser.
If you are a subscriber, use Shared Views to collaborate online with the people you are working with. The shared view is created from the current view of the open model.
This starts up PowerMill Modelling.