Two independent tables on same report

Hi all.
What would be the best way to add a new detail band to a report? The idea is to include data from two tables, independent of each other, in the same report, one after the other.

This is the way to do it:

  1. Create the new detail
  2. WindowManager.Next, after the parent call:
    IF ReturnValue = Level:Notify
    !loop thought the records of the second table
    PRINT(RPT:DETAIL2) !Put it inside the loop code