The name of a document template may contain any character, including spaces.
The name of a document template may be identical to the name of one of the existing document templates. This allows to replace an existing document template by a new one.
In the above screen shot, we can see that:
The user is creating a new document template called "
Previously, the user has replaced predefined template called "
Refentry" by a "
Refentry" document template of its own.
Previously, the user has created another document template called "