<em>Undo / redo</em> - editing of sequences (insertion/removal of
gaps, removal of sequences, trimming sequences etc) may be undone or
redone at any time using the appropriate menu items from the edit
<em>Undo / redo</em> - editing of sequences (insertion/removal of
gaps, removal of sequences, trimming sequences etc) may be undone or
redone at any time using the appropriate menu items from the edit