Possible to change a regular requisition to a pipeline req?

Summary:

Would it be possible to change a regular requisition to a pipeline req? Hypothetically, you can flag pipeline requisitions. When doing the pipeline information about the candidates and job information. They want to get the main req the candidates are on and not the child requisitions. They only want the child information (the candidate info only) not the hire information necessarily. If recruiting for a single position and need to hire more than one for that requisition, can it be converted to a pipeline requisition and reporting can pick up those candidates accordingly?

I am asking for reporting and HR configuration and process information.