Once you assign the MasterKey keynotes any changes made to your specification selections can be updated into your project keynotes. The update can apply wherever that keynote occurs throughout the entire drawing set.
MasterKey in Revit 2015 is downloaded as a separate application and you must have Revit closed when you install the 'add-in'. You must also ensure your personal Masterspec User ID is associated with the practice account and you have been added as a MasterKey user by your administrator. Once installed and Revit re-started, MasterKey automatically appears in your Revit Add-Ins tab and allows access to your practice specifications.
Follow the links below for instructions on downloading, installing, linking your specifications to your projects and more.
Or download the MasterCAD on Revit 2015 documentation here
MASTERKEY FOR REVIT 2015: INSTALLATION AND LOGGING IN
MASTERKEY FOR REVIT 2015: LINKING TO MASTERSPEC
MASTERKEY FOR REVIT 2015: ASSIGNING MASTERKEY KEYNOTES
MASTERKEY FOR REVIT 2015: ADD, EDIT, DELETE, RE-SYNC KEYNOTES
MASTERKEY FOR REVIT 2015: CREATING CUSTOM KEYNOTES
MASTERKEY FOR REVIT 2015: THE SEARCH FUNCTION