What feature allows elements to automatically adjust in Revit?

The feature that allows elements to automatically adjust in Revit is constraints. Constraints in Revit establish relationships between elements, enabling them to move or resize in response to changes in other elements or dimensions. For example, when a constraint is applied, if one wall is moved or resized, any connected elements will adjust accordingly based on the defined relationship.

Using constraints helps maintain the design intent, ensuring that components remain aligned or spaced consistently even when modifications are made. This is particularly useful in complex projects where maintaining spatial relationships is critical.

Dimensions and references, while important in providing information and aiding in alignment, do not inherently create automatic adjustments for elements. Groups involve multiple elements but do not establish the relational behavior that constraints provide for automatic adjustments.