Onboarding - Update Start Date

We use the onboarding module and occasionally HR needs to update the start date for a worker.  This field is not editable after the ticket has been submitted.  Because of this, we write the start date into the ticket subject when the ticket is created and this allows us to update a date if HR requests us to do so.  

Unfortunately this prevents us from running any automations using start date against onboarding tickets.  I’d love to see this field become editable.