IAgVmVOSpatialCalculationLevelCollection Interface for defining collections of defining Spatial Calculation Boundary/Fill Levels for volumetric grid.

Add	Adds a new level to the collection. When adding a level with duplicate 'Value', it will update 'Color' and 'Translucency' values of the existing level.
RemoveAll	Removes all elements from the collection.
RemoveAt	Removes an element from the collection using specified index.

Count	Returns the number of elements in a collection.
Item	Given an index, returns an element in the collection.

Name
AgVmVOSpatialCalculationLevelCollection