Resource Mailboxes - Changing Default Booking Window

Hi

The built-in default "Booking Window" for a resource mailbox calendar is set to 180 days.

In our environment, these accounts can be created by a number of individuals who don't necessarily have access to change the booking window setting. At the moment we have a nightly powershell script running to set the window to 365 days, so that we capture any newly created accounts.

So that I can do away with running the script, I would like to be able to change the "default" value of 180 to 365, so that any new accounts will be set with 365 automatically. Is this even possible?

Thanks.