Give your field an appropriate name.  This is particularly important if using it in a calculation or report.  Changing a field name will not automatically update corresponding reports that use that field.

Style the Labels associated with each Checkbox

The number of columns specified will denote the layout of your checkbox list.  For example, if you have 9 checkboxes in your list, and you choose to display them in three columns, each row will have three checkboxes and you will have three  rows.  Conversely, if you choose to display the check boxes in one column, you will see nine rows.

Set a default value if required.

Choose where the labels sit in relation to the check boxes.

Enter the text for the control as you wish it appear to the agent.

Enter the values and text labels associated with your checkbox list.  Drag and drop existing entries to change the order of the list.

 

Apply field validation for your control, if required.  Do not forget that you will also need to validate the page!