APD using 2 or more query as source

Hi Experts,

I would like to ask if it is possible to have 2 or more query as source of APD. The scenario is the data of 2 or more query should be populated in one csv file. If it is possible to merge the data of 2 or more query in one csv file, in my testing it might overwrite the values because it is just one on one mapping for query and target result.

Please help on the issue. Your inputs are very much appreciated.