Is it possible to get e-CME credits?

No, this is only possible on Education on Demand premium.

Do I have to log in?

No, all courses and videos can be accessed without logging in.

How can I get access to more courses and earn e-CMEs?

Please log in to your ESRmyUserArea and purchase a one year subscription for  Education on Demand premium (49€ for ESR members and 99€ for non ESR members).