positions a label in relation to the control
{view:"checkbox", label:"Some Text", labelPosition:"top"}
By default, the label is aligned to the left, so the top label will also be placed to the left.
To align the top label to the right, set the labelAlign property:
{view: "checkbox", label:"Some Text", labelAlign:"right", labelPosition:"top"}
To add a label to the right of a checkbox, use the labelRight property.