OptionalidOptionalselectionOn detail only: the selection the children form (e.g. "Alle Einzelpläne").
OptionaltableOn detail only: the dimension of the element's children (e.g. "Einzelplan"
for the whole budget, "Kapitel" inside an Einzelplan, "Titel" at a leaf).
Value in euros.
A single budget element (a line, group or function).