When I import the rfa file of a sprinklerhead, I can't choose the datagroup of a sprinkler system. Because Sprinkler is a different disciplin in Mechanical world. It is a safety. And OBD have a menu for Sprinkler called "Fire protection", but if import this with RFA Interpreter Wizard, can't choose this disciplin. But It has to be chosen as Safety disciplin in Architect. But no Architect will design a sprinkler installation. He or She will just only give a suggestion to put it in the project for insurance. Sprinkler is a special technique and also designed and placed by Mechanical firms and this firms must also been certified. So it must be put in Mechanical menu under Fire safety. Because a mechanical user will never search in an architectural module.