diff --git a/pandora/config.pandora.jsonc b/pandora/config.pandora.jsonc
index ca1cccbdc..99f8b1c2d 100644
--- a/pandora/config.pandora.jsonc
+++ b/pandora/config.pandora.jsonc
@@ -150,8 +150,10 @@ examples (config.SITENAME.jsonc) that are part of this pan.do/ra distribution.
     ],
     /*
     "itemKeys" defines the metadata associated with each item. Required keys
-    are "*", "id" and "title". Adding a key with "random" as id will produce a
-    random value; this can be used for a "random" sort order.
+    are "*", "id" and "title". Annotation layers can be referenced too, which
+    makes them available in the find element. Adding a key with "annotations"
+    as id adds a "find in any annotation layer" option. Further, adding a key
+    with "random" as id can be used for a random sort order.
     An itemKey must have the following properties:
         "id": The unique id of the key (as used by the server)
         "title": The title of the key (as displayed by the client)