Variables allow you to define shareable
values like a color or a number. Variables can be used in an
expression, where they are substituted by their value at run time.
To create or edit a variable:
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Click Edit > Variables.The Variable definitions dialog opens with the list of currently defined variables.
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To add a variable, click Add.A new row is created.Edit the name and value to set the variable.
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To change a variable, edit its name or value directly in the list.
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To remove a variable, select its row in the list and click Remove.
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Click Apply to accept the changes.The Expression Assist is automatically updated with the new variable set.
To use a variable in an expression:
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Use the Expression Assist to select the right variable.