Answer:   Changing the Order of Steps in a Flow Service
In the Layout tab, the arrows connecting the flow steps indicate the order in which the steps execute. You can move, or relocate, steps in a flow service to change the order in which steps execute. You can also relocate a step to make it a child of another step in the flow service.
*To change the order of a step in a flow service on the Layout tab
1.On the Layout tab, select the step whose execution order you want to change.
2.Use the Cut, Copy, and Paste buttons on the toolbar or the Cut, Copy, and Paste options on the context menu to change the location of the flow step.
For more information, see Moving and Copying Elements.