Resizing Swim Lanes

When you add a new swim lane in the Pool, the width of the new lane is the same as that of the existing lanes, whereas its height is 100 units. However, you can modify this height from the bottom boundary and can be decreased to a minimum height of 50 units. The height of swim lanes can vary depending upon the activities inside the swim lane. The width of all swim lanes remains the same throughout the Pool. It is defined to be 50 units more than the right-most activity in the entire process model.