The top combobox allows to select the group of options to be edited.
Each group of options is completely separated from the other. For
example, specifying that an index is to be generated as backmatter for
group "Convert to single-page XHTML" will have an
effect when you'll use and no effect at all when you'll use or when you'll use (because there is a separate "Convert to
single-page XHTML" group of options for the
Map, BookMap and
Topic configurations).