What command is used to create a feature for the reuse library?

The command used to create a feature for the reuse library is "Define Reusable Object." This command specifically allows users to take existing features, components, or groups of features and categorize them as reusable objects in a library. Doing so facilitates efficient design practices, as these reusable objects can then be easily accessed and implemented in future projects, ensuring consistency and saving time.

Creating a feature for the reuse library involves identifying a design element that can be utilized across different models or assemblies. By using the "Define Reusable Object" command, designers can systematically store and manage these elements, promoting a streamlined workflow.

The other options, while they suggest commands related to feature creation or copying, do not align with the specific function of establishing a feature within a reuse library.