To add an Integration Over Extra Dimension () node and create an operator for integration over an extra dimension, under the Extra Dimension node, right-click Definitions and from the Extra Dimensions submenu, choose Integration Over Extra Dimension.

Also, Integration operators in other model geometries include an Evaluate in extra dimension checkbox in the Advanced section. When selected, the integration operator computes the integration over the source selection for evaluation in each coordinate of an extra dimension geometry.

Enter the Operator name of the integration operator.

Select the Integration order and the Frame to integrate in. If the Extra Dimension is an axisymmetric geometry, the Compute integral in revolved geometry checkbox is selected by default.