What does the 'Split Element' tool do in Revit?

The 'Split Element' tool in Revit is specifically designed to divide an existing element into separate parts. When this tool is used, it allows users to create distinct sections of an element, which can then be individually modified or managed. This function is particularly useful in processes like creating different materials for sections of walls or floors, adjusting visibility for specific segments, or managing structural elements that require division for modeling or documentation purposes.

In contrast, other options offer different functionalities. Combining elements into one is not the purpose of the 'Split Element' tool; that would be associated with a different command in Revit. Similarly, changing an element's material pertains to modifications of properties within the element rather than a structural division. Opening the Family Editor is also unrelated to splitting elements, as it focuses on editing the families that define the properties and behavior of elements within the project. Understanding the specific role of the 'Split Element' tool helps users optimize their workflow in Revit effectively.