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:
Click Edit > Variables.
The Variable definitions dialog opens with the list of
currently defined variables.
To add a variable, click Add.
A new row is created.
Edit the name and value to set the variable.
To change a variable, edit its name or value directly
in the list.
To remove a variable, select its row in the list and
click Remove.
Click Apply to
accept the changes.
The Expression Assist is automatically updated with the
new variable set.
To use a variable in an expression:
Use the Expression Assist to select the right variable.