--- a/client/css/renkan.css	Wed May 06 10:38:01 2015 +0200
+++ b/client/css/renkan.css	Wed May 20 10:32:26 2015 +0200
@@ -527,7 +527,7 @@
     top: 0;
 }
 
-.Rk-ZoomIn, .Rk-ZoomOut, .Rk-ZoomFit, .Rk-ZoomSave, .Rk-ZoomSetSaved {
+.Rk-ZoomIn, .Rk-ZoomOut, .Rk-ZoomFit, .Rk-ZoomSave, .Rk-ZoomSetSaved, .Rk-ShowHiddenNodes {
     width: 21px; height: 20px; background: url(../img/zoombuttons.png); margin: 5px;
 }
 .Rk-ZoomIn:hover {
@@ -557,6 +557,12 @@
 .Rk-ZoomSetSaved:hover {
     background-position: -84px -20px;
 }
+.Rk-ShowHiddenNodes {
+    background-position: -105px 0;
+}
+.Rk-ShowHiddenNodes:hover {
+    background-position: -105px -20px;
+}
 
 /* Bins */
 

Binary file client/img/zoombuttons.png has changed

--- a/client/templates/scene.html	Wed May 06 10:38:01 2015 +0200
+++ b/client/templates/scene.html	Wed May 20 10:32:26 2015 +0200
@@ -145,6 +145,7 @@
                 <% } %>
                 <% if (options.save_view) { %>
                     <div class="Rk-ZoomSetSaved" title="<%-translate('View saved zoom')%>"></div>
+                	<div class="Rk-ShowHiddenNodes" title="<%-translate('Show hidden nodes')%>"></div>
                 <% } %>
             </div>
         <% } %>