Group of checkboxes where you can check multipple boxes.
Required: If checked value must be selected
Label: Element label
Help Text: If added the form element will diplay a question mark icon. The text will be displayed if you put the mouse pointer over it.
Toggle: Transform checkbox to toggle button.
Inline: Put checkboxes on one line.
Class: Css class name.
Name: Programmatic name.
Access: Only users with selected roles will see the element.
Enable "Other": Let users add unlisted option.
Options: Add displaytext (Option 1) and value sent in the form (option-1). Delete values with 
and add more with 