$[] - Fields with a fixed set of values

You will use this keyword when you need to provide the user a set of options in a dropdown field.

Usage:

$[option1,option2,*Option3,option4,...]

Options:

• * - Default value is optionally prepended with an asterisk

Examples:

1. No default value

$[Country Code,Nbr Code]

2. With the default value of Country Code

$[*Country Code,Nbr Code]

In the video embedded below, you can see not only how the $[] keyword can be used at the definition level but also how it works at the instance level.