Can an artifact type be locked down to a particular artifact format?

For e.g., I would like to tie a Use Case type to the Text format. So when an analyst tries to create a use case, he/she cannot switch the Use Case to be created as, say, a Storyboard. Or tie down a UC Diagram to the Use Case Diagram format.

Likewise, I would like to be able to define what sort of links are permitted between artifact end points. E.g., I would like to create a custom link called "related" and limit that link to between a Use Case and, say, a UC Diagram. Is that possible in any way?

Basically, what I am trying to come up with is a project template which will limit what users can and cannot do, so that there is consistency in the way requirements are created, linked and maintained.

Thanks,

Vivek