Hi Mike,
Yes, it is possible. When filling out the Report Builder form, the Base Path needs to point to a repeating node in the form. Then, the fields to retrieve must use a path relative to that repeating node.
So if your base path is my:myFields/my:Customers/my:Customer (where my:Customer is repeating)
Then your fields could be:
my:Name
my:TelephoneNumber
my:Address
../../my:Date (this allows you to select a field from outside of the repeating group).
Hope this helps!