Withdraw function On new item request definition stage Worklist

New Item Request Approvals are enabled.

Two Stage - Definition and Approval

Definition Stage has three levels of Role approvals, when we say approve , setting the stage as completed

when all the three levels of stages are completed, NewItemRequest Auto Approval is enabled which will be approved

During definition stage on the workflow the following actions can be done

Request Information
Reassign
Escalate
Release
Suspend
Withdraw [This is available for Admin, Creator and Owner ]
Skip Current Assignment
Save

We are looking for Withdraw function for the assignee or Approve and Reject option on the newitemrequest definition.

Any insight would be great help.