At this time, you'll need to select either CME or Eurex for your assessment. While we understand many traders would value access to both exchanges, the different currency denominations (Euros € for Eurex and US Dollars $ for CME) currently require us to limit access to one exchange per assessment.
We're actively working on a solution to enable cross-exchange trading in the future. For now, please proceed with your preferred exchange—whether that's CME or Eurex—based on your current trading focus and experience.