Which tool will copy all elements of a category at once?

The tool that allows you to copy all elements of a specific category at once is indeed Batch Copy. This feature is particularly useful when you need to duplicate elements like doors, windows, furniture, or fixtures across a project without having to select each item individually. By using Batch Copy, you can streamline the process, ensuring that all elements of the designated category are copied simultaneously, which can significantly save time and maintain consistency across your design.

The other tools mentioned serve different purposes. Coordination Review is primarily used for checking and managing clashes between different elements in a project. The Copy tool, while it does allow the user to duplicate elements, typically requires individual selection rather than affecting an entire category at once. Monitor is designed to track changes and updates between different linked models, rather than for copying elements. Thus, Batch Copy is uniquely suited for the task described in the question.