Advance select for source file in Sender File Adapter

Hi

I am trying to utilise the parameter 'Advance Selection for source file' on a sender file adapter to pick the file from multiple folders

My problem is that this parameter that is listed on the SAP help is not getting in File accessing Parameters.

I am running PI 7.02 (NW702_07_Rel)

Service pack 07

Has anyone come across this before?

any suggestions on how to do this?