Add New Object
This tool allows to draw an object on the active layer, taking another layer as reference (if needed).
1. Select the layer where you want to draw the new object and click on the Add Object tool.
2. Each time that you left click, a mark representing an external point of the shape will be drawn.
3. To finish drawing the shape double click after marking the last external point of the shape.
a. If the active layer is Polygon, the added object will be a polygon, therefore you would need to draw at least 3 points before finishing the shape.
b. If the active layer is Line, you need to draw at least 2 points before finishing the shape.
c. If the active layer is Point, you need to double click each point that you need to draw.