Image shows the Transform activity dialog. There are three tabs at the top: General, Transformation and Annotations. Below this, the Source section includes a two column table: Variable and Part. Add, Edit, Delete, Up, and Down icons display above the table. The Target Variable section includes drop-down list. Target Part field displays on the right side. Below this is the Mapper File section, which has a Mapper File field with three clickable icons: Browse, Add, and Edit. At the bottom are the Help, Apply, OK, and Cancel buttons.