Datareport question

Hi!
I am building a report with Datareport designer.
I have a shape command with two childs, I wish to obtain a thing like this:

Customer xyz
List of tickets for customer xyz (childcommand 1)
List of cars of customer xyz (childcommand 2)

I cannot do it due I have only a details section! How can I print these
two lists generated by two different commands?
Thank you

Trix