Best way to create an off-boarding request checklist only available to HR and IT?

What we would like to see is an automation or Runbook where we can have a termination or departure ticket generated which helps us by having a checklist of common activities which we do not always have to go back to a word document for.  We have this similarly documented in MS Word, but its inefficient.   A ticket generated by HR and then only visible to HR and IT with the potential to add in a Direct manager to the ticket would be great.