Can I hold a practice session on BigBlueButton, Groupworld or Zoom?

Yes, please do!

To start a Demo session head over to the "Schedule A New Session" tab in your tutor account. Then select the 3rd option labeled "Demo Event". 

After selecting Demo Event you will see a new page, similar to a regular session, which will require you to select which classroom you'd like to use. Once you select a classroom select "Start Session".