option is true, in which case they are saved in an older,
human-readable format that is specific to XBoard. Both formats
can be read back by the ‘<samp><span class="samp">Load Position</span></samp>’ command.
-<br><dt>Mail Move<dt>Reload CMail Message<dd><a name="index-Mail-Move_002c-Menu-Item-16"></a><a name="index-Reload-CMail-Message_002c-Menu-Item-17"></a>See <a href="CMail.html#CMail">CMail</a>.
-<br><dt>Exit<dd><a name="index-Exit_002c-Menu-Item-18"></a>Exits from XBoard. The <kbd>Ctrl-Q</kbd> key is a keyboard equivalent.
+<br><dt>Save Selected Games<dd><a name="index-Save-Selected-Games-16"></a>Will cause all games selected for display in the current Game List
+to be appended to a file of the user's choice.
+<br><dt>Save Games as Book<dd><a name="index-Save-Games-as-Book_002c-Menu-Item-17"></a>Creates an opening book from the currently loaded game file,
+incorporating only the games currently selected in the Game List.
+The book will be saved on the file specified in the ‘<samp><span class="samp">Common Engine</span></samp>’
+options dialog.
+The value of ‘<samp><span class="samp">Book Depth</span></samp>’ specified in that same dialog will
+be used to determine how many moves of each game will be added to
+the internal book buffer.
+This command can take a long time to process,
+and the size of the buffer is currently limited.
+At the end the buffer will be saved as a Polyglot book,
+but the buffer will not be cleared,
+so that you can continue adding games from other game files.
+<br><dt>Mail Move<dt>Reload CMail Message<dd><a name="index-Mail-Move_002c-Menu-Item-18"></a><a name="index-Reload-CMail-Message_002c-Menu-Item-19"></a>See <a href="CMail.html#CMail">CMail</a>.
+<br><dt>Exit<dd><a name="index-Exit_002c-Menu-Item-20"></a>Exits from XBoard. The <kbd>Ctrl-Q</kbd> key is a keyboard equivalent.
</dl>
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