All species have a flag which can be set to FALSE or TRUE.
All species with the flag set to TRUE are called marked
species. Normally this flag is used to specify a subgroup of
species for editors, tree building programs ...
EXAMPLES
Mark one known species:
Search for the species: <ARB_NT/Species/Search>
Select the species
Mark it
Mark a list of species
Search for the species: <ARB_NT/species/search>
Press <Mark Listed/Unmark Rest>
Mark all species in selected tree:
Unmark all species: <ARB_NT/species/unmark all sp>