Ticket #3527: settable-zoom.patch

src/org/openstreetmap/josm/data/osm/visitor/BoundingXYVisitor.java

@@ -94 +94 @@
      * equal <code>null</code>) this method does not do anything.
      */
     public void enlargeBoundingBox() {
-        enlargeBoundingBox(0.002);
+        enlargeBoundingBox(Main.pref.getDouble("edit.zoom-enlarge-bbox", 0.002));
     }
 
     /**