System enumerations

System enumerations are used to define a certain set of preset values. System enumerations are accessed as global context properties. Specific values are listed after the name of a system enumeration. You should use the point symbol as a separator. System enumerations are usually used to set values for system method parameters or object properties and as returnable method values.
System enumeration values are not selected by index.
Traversal by the For Each ... In .. Do operator is possible.

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