add a couple of ideas from fex stuff

doc/design_notes.html

@@ -60,7 +60,12 @@ other such stuff, e.g. how about indicating start/end_not_found etc.
 
 <P>Record anything here that you would like to be considered but is non-essential.
 
-
+<ul>
+  <li>Allow user to interactively retitle a window, v. useful when there are lots
+      of fmap windows on a screen.
+  <li>Prevent users from zooming in/out to the point where the drawing code breaks, particularly
+      for zooming in where lines start to randomly appear/disappear.
+</ul>
 
 
 
@@ -81,7 +86,7 @@ other such stuff, e.g. how about indicating start/end_not_found etc.
 <HR>
 <ADDRESS><a href="mailto:edgrif@sanger.ac.uk">Ed Griffiths &lt;edgrif@sanger.ac.uk&gt;</a></ADDRESS>
 <!-- hhmts start -->
-Last modified: Mon Dec  1 13:54:14 GMT 2003
+Last modified: Fri Dec 12 14:32:10 GMT 2003
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 </BODY>
 </HTML>