The InitFinalize script utilizes the following special symbols:
value (Number) Entry: The current value of the initiative determined for the actor.
text (String) Entry: The current initiative value converted to a string.
Exit: The contents to be used for finalized version of the field. The text may contain encoding.
The InitFinalize script is a special-purpose instance of a normal Finalize script. The value being finalized is the initiative value calculated for an actor via the Initiative script. In all respects, this script behaves as a standard Finalize script, except that there are no other field values that can be accessed via the initial pick context.
This is a standard Finalize script, so the example for that script can be referenced.