Within the NBS Plugin for Autodesk Revit, you have the ability to access features that allow you to link your Revit model and NBS Specification files.
Enabling Specification Features
To access these features, first ensure you have the plugin correctly installed then select the NBS tab within Autodesk Revit. You will see the following:
Select the "Specification Features" option and you will be presented with the following screen:
Click the "Activate" option at the bottom to enable the features.
Disabling specification features
Once enabled your NBS Plugin bar will have more options, such as below. To disable Specification Features, click the "Specification Features" in the menu bar on the right side.
To disable the features, click "Deactivate" option at the bottom of the resulting window..