adding in already submit form ( the receiver)

is there a way for the receiver to add a value on already submit form. Im working on full maintenance request form for the rig operation. we have a requirement that state only do full maintenance whenever it reach 5 or 6 jobs. the issue is the operation team do not know the number of the rig completed, so i need the receiver to add the number of rig in the form to send it for the leader approver

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