DC30 - Templates for original files

Hello,

is it only possible to create and change templates for original files without transport?

I have one document type for templates which I want to use for different document types in DC30. I only want to create the templates (document type for templates) in production and do not want to use for every new version the customizing with transport order. As it is a production system without changes allowed, I cannot use DC30 direcly in production. Is there an other way without transport from developement? (Table TCZ02 directly is also not allowed).

Thanks.

Karin