The Checkbox type is used for a ON / OFF selection.
chk.type = checkbox
chk.default = 1
chk.label = This is the checkbox prompt
chk.tooltip = Yes, it’s that simple!

A checkbox
checkbox will return "name=ON", or name=OFF, In this case chk=ON or chk=OFF
.label The prompt for the user that identfies what information is being requested. If the label is longer than the width of the window, the window will be resized.

A checkbox with a long label
.default Sets the checkbox selected.
.tooltip Set a tooltip for the checkbox.
Checkboxes are usually presented in a group for related ON/OFF selections.

A group of checkboxes