Have you tried using a reference plane and then creating a cut plot?
You can then use the "crop region" option to only show result in a specific area of the plane. Hope this helps!
So you want to plot on a plane, have you tried just using a cut plot?
Surface plots provide tabular information about the field variable values, ncluding internally calculated integral values, on the surface (See the Enhance Parameter List) . The selected values on the Surface Plot can also be used as goals or participate in Equation Goals. That is the difference between the plane cut-plot (assuming that the both are on planes). To create a Surface plot, indeed you need to create a volume with the target Surface. The volume must be setup as "Disable" in the Input Data/Component Control Panel to be transparent for the flow (with unchecked box).