Control DFF visibility on Absence recording page for Leave extension

Summary:

Hi ,

We need to implement leave extension functionality in Oracle Absence management. Currently the only feasible option is to edit leave
and change the start and end dates. For this reason we have added DFF field Leave extension which has to be selected if the employee edits
an existing leave. We need to know if we can display this DFF only when the employee clicks on edit existing absence and not when they are
submitting a fresh absence for the first time. Can we control the visibility of this DFF on the absence recording page based on the mode the user