For both Searched and Valued CASE statements, any number of conditions can be built up. In order to do so, a Condition must first be dragged and dropped into the Conditions folder of a Searched Case or Valued Case expression. Each condition results in an expression of the form WHEN expression THEN expression. As an example, when dragging a Condition into the Conditions folder of a Searched Case expression, the following tree element is created.
Columns and/or other expressions can be moved over the (empty) branches of the tree.
There are no special properties for the Condition function.