eXchange Integrator supports orthogonal and diagonal link styles. This setting applies to all links in a model and is an automated application of the style.
Move your cursor over the connector portion of your modeling element.
Hold the cursor over the outside edge of the modeling element until it changes from the arrow pointer to a hand.
See Figure 6–2.
Click down, and drag a line from the first activity to the connector of the second activity.
When the link attaches, release the mouse button.