04-24-2014 11:02 AM
if i understand you correctly what you are looking for could be achieved by the following:
1. Concatenate your tables - Tables >> Concatenate, here you should select the option of "Create source column.
2. Now any filtering or selection will be done on all the tables and could be filtered once more by the source column.
furthermore, now that you have one table with all your data you can preform any analysis you want just make sure to insert the "Source" column in to the "By" slot.
once you get your output, you can always right click on any table and choose the option of Make into combined data table to aggregate the results of different sources into one table.
hope this works, if you need a more detailed explanation just ask.