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>
<ARB_NT/Species/Mark species/Species in Tree/Mark species in Tree>
or
Select the <MARK MODE>
Press the left mouse button somewhere outside the tree.
Mark a subtree:
Select the <MARK MODE>
Press the left mouse button at a subtree.
Mark queried species:
Select 'Search' from the ARB main window
Perform a search
Use 'Mark Listed Unmark Rest' to mark all queried species