The Variables tab allows you to create new variables that you can use in your report.
To create a new variable, click New and select one of the following options:
Variable (see Variable Builder)
Encoding (see Encode Variables)
Lookup (see Lookup Builder)
After you create a variable, it appears in the Variables tab. To edit an existing variable, select the variable and click Edit. To delete a variable, select the variable and click Delete. To insert the variable into your report layout, click Insert.