Require PIN for conference rooms

I’m using the Conference Room Pro module. I’m setting up a DID into the Conference Room IVR. I want all Conference Rooms to REQUIRE a ADMIN/USER PIN. However I don’t see any way to enforce that, meaning the end user could simply remove it leaving the conference room prone to unauthorized use.

I don’t really care if the end users change those PIN codes. I would like to enforce a certain length and complexity to it if possible as well, but first just enforcing it would be nice.

Is this possible? Thanks.