“As an alternative to controlling Revit tools and analysis features using the Options dialog > User Interface tab, you can define the DisciplineOption setting in the Revit.ini file.”
Use this link to access a calculator that provides you with the right value:
http://wikihelp.autodesk.com/Revit/enu/2014/Help/3663-BIM_Mana3663/3689-User_Int3689
Heads-up from Steve at:
Revit OpEd: User Interface Configuration Calculator
This is cool!