Custom Template in Rise 360

I understand there are Rise 360 templates and that users can create custom template blocks, but we have a huge need for custom templates. While there is the option to be able to duplicate a course, this creates a lot of issues in terms of template versioning and permissions.

Our team creates many courses and we want a consistent look. It would be great if we could share out a custom template that can be updated and maintained by certain individuals and used by others.