Process diagrams
When you are ready to add more details about the flow of your process, including alternate paths and swimlanes, you can switch to the process diagram view by selecting Process Diagram from the drop-down menu in the toolbar.

In the Process Diagram view, you can add new swimlanes and milestones using the buttons in the toolbar.
To add other diagram elements, hover over a flow line until the
insert button
appears, then
click to insert an element.
To move an element between swimlanes or milestones, drag and drop the element to its new location. The connection lines are automatically redrawn to respond to the new placement of elements.
To move multiple elements, use Ctrl+click or Cmd+click to select the elements you want and then
drag and drop them to their new location. Or, select the first element or several elements and then
use Shift+click to select the last element and all other elements in the shortest path.
Alternatively, you can toggle the Marquee Select button
and draw a rectangle around the elements you want.
To represent the details of your process, you can add elements to your process diagram, including activities, events, and gateways.