Modify Person Number while converting Pending Worker

Summary:

On 25A.

Under Manage Enterprise HCM Information, Person Number Generation Method is set as Manual.

Created an Job Requisition and applied as an External Applicant, and pushed all the way to Pending Workers.

In Pending Worker, Person Number is assigned.

The next step is to Convert Pending Worker, who will be HIRE.

The question is, is there a way to modify or change Person Number, before Convert Pending Worker?

Thanks,

Simon