Allow any value
Description
Allows you to set a ViewBox control's value to any value -- including values not included in the ViewBox's selectable items.
Discussion
The Allow any value property, when enabled, lets you set the ViewBox to a value not present in the ViewBox HTML. If this property is not checked, the ViewBox value can only be set to values of selectable items. Values are defined in the ViewBox's data a5-value attribute in the ViewBox HTML.