User Guide
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Creating a Variable

In the Variables window, click the "+" button to create a new variable. Add a name:

and a value:

Select "Apply":

Steps to update the variable are performed (Identifying components affected, Stopping affected Processors, etc.). For example, the Referencing Processors section now lists the "PutFile-Root" processor. Selecting the name of the processor in the list will navigate to that processor on the canvas. Looking at the properties of the processor, ${putfile_dir} is referenced by the Directory property: