Report Template Administrator – who knows something about it?

Hello everyone,
am I in the right place with my question?

For a customer project, I can’t avoid using the Report Template Administrator role. 
Unfortunately, the tool and the EDU are too complex. 
I want to create a report template for generating a report for a VV_Testspecification.

Alternatively, I would also appreciate a tip on how I can extract information from the test specification without much effort.

Who can help me with this?
Or which other community can I contact?