Can we import class lists?

There's no import facility because with GDPR (and even before) we've always taken the approach that unless you have explicit recorded consent from the customer to add their details on to your PTA Events website they should register themselves. If you could email support@pta-events.co.uk with an example of the consent you have recorded and what that consent entitles you to do with that data then we might be able to help. However, it's really something we have stayed away from due to data privacy laws. We take the view that customers giving their own explicit consent on sign up is the safest approach. Then again, we are only the processor in this relationship - you are the data controller and therefore control all of your data and it belongs to you (we don't share it with anyone).