In SAP source system we have what we call a firefighter role where we can assign access so that a developer for example could have temporary access to production in order to troubleshoot a problem. All firefighter access has an expiration date and is logged for auditor purposes. I'm not aware of a way to do this within HANA studio security. I thought about perhaps setting up special roles and then setting up audit on that role to keep a trail of who was granted access although it doesn't resolve the expiration issue. I'm curious how have others handled this in HANA that may need the same type of access auditing/restriction?