What tool can be used to control the crop region of a view?

The correct answer is Scope Box. A Scope Box in Revit is specifically designed to manage and control the crop region of a view. You can create a Scope Box to define a specific area within your model, which can then be referenced in different views simultaneously. By using a Scope Box, you can ensure that the crop region stays consistent across various views that reference the same box. This is particularly useful when you want to maintain a coherent view of a specific section of the model across different floor plans, sections, or elevations.

In contrast, other options serve different purposes. A View Reference is typically used to link views, such as referencing another view from the current view but does not control the crop region. The Section Box is utilized in 3D views to create sectional cutouts of the model, allowing you to visualize the interior details, but it does not adjust the crop region of plan views. A Plan Region allows you to modify the visibility, extent, and depth of a specific area within a view but does not function as a tool for cropping in the same structural way as a Scope Box. Thus, the Scope Box is the most appropriate tool for controlling the crop region in your views.