Hi Ingo,
you could test following link:
https://www.sap.com/cmp/dg/crm-xm14-tec-dev-tr09/index.html
Access works a little bit strange. I log on with my SAP credentials on the left hand side of the screen. After logon I stay on the screen and on the right hand side my user data is displayed. Confirm on buttom right and then you get after some more pop-us to the ES Workplace.
Regards,
Winfried