Studio 2014 - Custom File Type - Lock Segment

Hi,

an internal customer requested to be able to see non-translation-relevant texts (marked in red in the screenshot of TagEditor) so that they know which section they are translating (a document always has the same section headers).

For the new solution "Studio", we created a custom file type for these documents and now want to display the section headers (declaring them as "not translatable" in the parser rules is not sufficient), but lock them, because otherwise (in the case of a 100% match) the translators would have to be payed.

Is there a setting for that in the definition of a custom file type or is this something that can only be achieved, if ever, using the Studio API / File Type Support Framework?

Thanks for any helpful hint in advance

Simon