Index: trunk/BNC/bnchelp.html
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--- trunk/BNC/bnchelp.html	(revision 374)
+++ trunk/BNC/bnchelp.html	(revision 375)
@@ -105,4 +105,6 @@
 help contents.<br>
 You may keep the 'Help Contents' window open while setting BNC options.
+<br>
+Furthermore, BNC comes with a help system providing online information about its functionality and usage. Simple descriptions are available for any widget. The default way to enter the so-called "What's this?" mode for asking question is to move the focus to the relevant widget and press Shift+F1. A help text appears immediately; it goes away as soon as the user does something else. Some dialogs provide a "?" button that users can click to enter "What's This?" mode; they then click the relevant widget to pop up the "What's This?" window.
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 <li>