Arranging, Moving, and Reusing Processes in a Hierarchy

When building your PHD, you may find that you need to arrange or move your symbols, or that you want to reuse a process in more than one place in the hierarchy.

Arranging Processes

To re-arrange your symbols, you can:

Right-click a root process or parent process symbol, and select Arrange Symbols from the contextual menu. All the sub-processes of the selected process are evenly spaced.
Select Symbol > Auto-Layout. All hierarchies are arranged in horizontal or vertical rows depending on the display preferences. The relative position of the processes within a hierarchy is unchanged. If you have previously selected one or more symbols in the diagram, you will be prompted to choose whether to layout the selected symbols or all symbols.

Moving Processes

You can move a process or a decomposition link in the diagram window:

When you move a...symbol	Cursor	Result
Process		The process and any sub-processes if any are moved. If you drop the process onto another process, it becomes a sub-process of the second process.
Decomposition link		All the processes, beneath it in the hierarchy, are moved. Note that only the horizontal or vertical part of a link (depending on the display preferences) can be selected for the move, and you can only move a link up or down.

When you move a...symbol

Cursor

Result

Process

The process and any sub-processes if any are moved.

If you drop the process onto another process, it becomes a sub-process of the second process.

Decomposition link

All the processes, beneath it in the hierarchy, are moved. Note that only the horizontal or vertical part of a link (depending on the display preferences) can be selected for the move, and you can only move a link up or down.