Here's how you can view your year end tax documents like the W2 and 1095C:
Once you log in, click on the Myself tab. Then click "Documents & Forms" and find the "Year End Documents" tab.
You will see your W2s and 1095Cs in tables on this tab. Select which you would like to see, and the forms will download. Forms from 2015 and prior will be available to you now, and 2016 forms will become available by February of 2017.