The left-hand pane shows the View Objects tab selected. In the right-hand pane the Cardinality dropdown is set to a value. Attributes of view objects are shown selected in the Select Source Attribute and Select Destination Attribute columns respectively. They appear in the Source Attribute(s) and Destination Attribute(s) columns below upon click of the Add button, and both these columns have the Bound checkbox apiece which is shown as selected.