I would like to add a cross-tab to the report header of my report.  It would look something like:
                 Total           7/2014            8/2014             ect...     
station1      55                 50                     5
station2    120                 20                 100
station3        5                   5                     0

What I am not sure how to do is add the column dates.  These are delivery dates that are being pulled from a sub-report that i have in the detail section of the main report.  I have added other sub-reports like the above with no problem, but all the information was on the main report.  This is the first time I am pulling information (date) from a sub-report, I have no idea where to start or if it can be done?