Setting the App Environment

Starting in 2022x, two Fastening app environments are available. By default, users can work in a mixed environment where legacy fasteners and fasteners created with bundles can coexist. All the commands support both types of fasteners. To let users work exclusively with the new data model, you must set an environment variable before running a Fastening session.

See Also
Action Bar Commands and Contextual Commands in Mixed and Optimized Modes
Customizing Preferences
In YourInstallationFolder...\CATEnv\Env.txt, set FSX_NEW_MODELER=1.
The types of fasteners users can work with are restricted to bundle modeler fasteners. All the commands are available for bundle modeler fasteners only.