Add fields in Job Requisition approval flow

Summary:

Hi Everyone, 

We've requirement to add field in job req approval page as highlighted in the box

I checked req related approval flow, BPM worklist task like RequisitionApprovalHumanTask and checked all the option but did not see configuration to add a field

Can you please let me know how this can be achieved. 
Thank you. 

 Regards, 
Hrushikesh Pentewad.

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26A

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