Press a button to add terrain features to different terrain maps 1. After pressing the "BG" button, select either a river, lake, Island, or straight to view the actual Florida terrain feature. 2. Select the other buttons to drag and add terrain features. 3. Press "S" to stop stamping the terrain features on the maps and return to the Map Key. 3. Press the "clear" button in the upper right hand corner to start over.