Image shows the Transform activity window. There are four tabs at the top: General, Transformation, Sensors, and Annotations. The Source and Target section displays below this. This section has a Source Variable drop-down list and Source Part section on the left side and a Target Variable drop-down list and Target Part section on the right side. Below this is the Mapper Configuration section, which has a Mapper File field with three clickable icons. At the bottom are the Help, Apply, OK, and Cancel buttons.