To load all marked sequences and all SAI's (defined in current alignment) as they are arranged and grouped in the currently shown tree, either
press the editor button in the upper panel (below the 'ali_xxx' button) or
use "Sequence/Edit Sequences/Using marked species and tree"
To load species as described in 'Standard' above and additionally add a number of closest relatives (=species adjacent to marked species in tree), use "Sequence/Edit Sequences/... plus relatives" and then specify the number of relatives to add.
Using earlier configurations:
To load an earlier configuration use "Sequence/Edit Sequences/Using earlier configuration" and select the configuration from the popup window.