Description for the Expression Builder

This image shows the Expression Builder. On the left side is the Inputs section. Below this is the View list, Filter link, and Detach link. Below this is the Source section and the search facility. Below this is the Source element tree. The queryLocator source element is mapped to the Expression field. Below this the Expression Summary field is empty. In the middle is the > button that was used to map the queryLocator value to the Expression field on the right side.