Use user groups when locking content in email templates

When creating emails in the email designer it is possible to lock parts of the email for editing. It is imported for me as i user to be able to lock content for other, if I act as a administrator for the templates, but they should be able for others with my role to edit and publish. Todays feature with content locking is a little to narrow when it comes to use cases. It should be possible to lock on you user for personal editing, but there should be a "admin" user group the can overrun this, and it should be possible for a admin user group to lock content so ordinary users cant change critical content. More role, and user group possibilities to admin the lock feature is needed.