<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
- menu. The undo history list only allows a maximum of 10 actions.
+ menu.
<p>
<em>Trimming alignment</em> - First select a column by clicking the
scale indicator (above the sequences) The alignment may then be