Select Variables Page
Applies to: 
SQL Server
SSIS Integration Runtime in Azure Data Factory
Use the Select variables dialog box to select one or more variables for the ReadOnlyVariables and ReadWriteVariables properties when you configure a Script task or a Script component.
To open the Select Variables dialog box, on the Script page of the Script Transformation Editor dialog box, under Custom Properties, locate either the ReadOnlyVariables or ReadWriteVariables property, and then click the ellipsis (...) button associated with that property.
Options
Select box
Selects a specific variable, selects all the variables, or clears the selection of all variables.
Name
Specifies the name of a variable.
Type
Specifies the data type of a variable.