This is not entirely true. You could hide the "real" elevation marker in one of the views (EH) and then make a new elevation using the "reference other view" option and select the "real" elevation as the referred to view. It will display "sim", but that is a view type parameter and can be changed to be empty if you prefer. If you do this, it is useful duplicate the view type ("elevation - no sim" or the like) to indicate to others that referencing (not "real" ) view markers will not display "sim" as is the default behavior.
With respect to Mr. Persin's comment about Revit's ability to coordinate views, this method should be used with caution, as it is counter to the built-in coordination.
Also, be careful you don't have the view (the triangle) selected when you are moving the tag (square or circle), as this will move the elevation's cut plane.
