Type to specify order for sorting compatibility properties.
Types that use CompatibilitySort:
Calls that use CompatibilitySort:
The property with its associated sort order, ascending or descending.
See the Field Index to learn which calls use sortOrder.
sortPriority ( SortPriority ) 
Indicates where in the sequence of ordering the property should ordered. There are five sorting steps, Sort1 through Sort5. When a property is assigned Sort1 as its sort priority, its values are sorted first. Values for the property assigned Sort2, are sorted second, and so on.
See the Field Index to learn which calls use sortPriority.