Expandable nodes
Nodes with the plus sign are expandable. When you click on the plus sign, the next level of detail is displayed. The node can expand vertically or horizontally:
• Alternative nodes expand vertically displaying two or more new lines underneath the node. Each line represents an alternative sequence available for the node. You can select only one sequence.
• Conjunctive nodes expand horizontally, displaying all available options in one line underneath the node. You can manually include one or more options into the operation sequence.