Index: data/defaultpresets.xml
===================================================================
--- data/defaultpresets.xml (revision 6195)
+++ data/defaultpresets.xml (working copy)
@@ -18,12 +18,21 @@
   name_template: define custom formatting for OSM primitives
                  see http://josm.openstreetmap.de/wiki/NameTemplate
 
+group: a group of items (same syntax as "item")
+
 link: link to the relating map features website
   href: the URL
 
 label: simple static text label
   text: the text to display
 
+space: empty line
+
+optional: optional tags, short for "label" plus "space"
+  text: the text to display (defaults to "Optional Attributes:")
+
+separator: separator line
+
 key: fixed key/value pair to be set
   key: key to set
   value: value to set