Add a Swim Lane

1. Select the Pool.
2. If there are no Swim Lanes, you can click anywhere on the border of the Pool to select it.
3. If there are already Swim Lanes, click on the left-hand edge of the Pool to select it. 
4. The Context Pad will appear on the right-hand side of the Pool. 
5. Click on the appropriate icon for where you wish to add your Swim Lanes (e.g. Add Lane Above, Divide into two Lanes, Divide into three lanes, Add lane below).

Add a Swim Lane in Camunda Modeler