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Use this command (Data tab, or in classic view, Database menu) to create and edit the individual variables used in your formulas. This command opens the Variable window where you can enter the name, unit of measure, default value, minimum and maximum allowed when entering a value in the formula, and help notes for each variable. Variables is available only when a standard database is open.
Tip: Edit Variable is available on a button or on the shortcut menu from variable fields and lists.