<p>
Changes are also saved to the <dfn>session history</dfn> file, so that
undo/redo is possible even if you close the session and reopen it later,
- even if you quit Ardour in between.</p>
+ even if you quit Ardour in between.
+</p>
<p>
The maximum number of changes that can be undone can be configured under
<kbd class="menu">Edit > Preferences > Misc > Undo</kbd>.
The maximum number of changes stored in the history file is a separate
parameter, and can also be set in the same place.
</p>
-
+
+<p class="note">
+ In addition to the normal undo (which works only on actions that change
+ the timeline), there is a <dfn>visual undo</dfn> which will revert any
+ command that affects the display of the editor window. Its shortcut is
+ <kbd class="mod3">Z</kbd>.
+</p>