In Microsoft Access Beginner 2 we created a table called AppointmentT, added a new form called AppointmentF. I know the videos are being updated. I noticed in all the videos of Access Beginner 3 series, AppointmentT and AppointmentF are not shown. Perhaps because of updates. I have kept AppointmentT in my database and its associated AppointmentF. We created a button on CustomerF that brings up all associated appointments in a new window. When following along Beginner 3 series, I see in my CustomerT table a series of + symbols on the left side of datasheet view. When I click on them, they expand to reveal associated appointments from the AppointmentT table. What is this? Did I do something wrong?