More granularity for activation and expiration of smart lock codes

I am transitioning to Hospitable Devices from Jervis Systems. Historically I have given guests a 15 or 30 minute “grace period” after checkout, so that their keypad code doesn’t abruptly stop working at check-out time. This is because guests are often scrambling to leave “on time” and might need a few minutes extra to get their stuff out of the property. And I don’t want them having to call me when all they need is a few extra minutes.

That said, I’ve noticed that Hospitable only supports early activation and late deactivation in full one-hour increments. This is TOO MUCH time for the use case described above.

So I’m wondering if it might be possible to make the activation and expiration of door codes (under “Settings” in Devices) be expressed in minute rather than hours. Or at the least, allow it to be configured in 15-minute increments (15 minutes, 30 minutes, or 45 minutes).