diff --git a/webserver/testbedstatus.php b/webserver/testbedstatus.php
index e916dd01bb7e10653e4e898502ef7daeb1c05305..62bc00cc5a89170d6da134e97a7cae35d53ecce2 100755
--- a/webserver/testbedstatus.php
+++ b/webserver/testbedstatus.php
@@ -151,9 +151,7 @@ $javascript = '<link rel="stylesheet" href="css/ui-lightness/jquery-ui-1.8.20.cu
                     while ($row = mysqli_fetch_array($rs)) {
                         $i++;
                         echo ($i%2 == 1) ? "<tr class='even'>" : "<tr class='odd'>";
-                        if ($row['observer_id'] < 10 )
-                            echo "<td>00";
-                        elseif ($row['observer_id'] < 100 )
+                        if ($row['observer_id'] < 10)
                             echo "<td>0";
                         else
                             echo "<td>";
diff --git a/webserver/xml/flocklab.xsd b/webserver/xml/flocklab.xsd
index 8d228d92eb1dccd98e88f7281c28c89554ac60b9..82a9d87e34e8326f99083bf76ebaea7cc0e852d4 100644
--- a/webserver/xml/flocklab.xsd
+++ b/webserver/xml/flocklab.xsd
@@ -206,7 +206,10 @@
 <xs:complexType name="gpioTracingConfType">
   <xs:sequence>
     <xs:element name="obsIds" type="obsIdListRestType"/>
-    <xs:element name="pinConf" type="gpioTracingPinConfType" minOccurs="1" maxOccurs="unbounded"/>
+    <xs:choice>
+      <xs:element name="pinConf" type="gpioTracingPinConfType" minOccurs="1" maxOccurs="unbounded"/>
+      <xs:element name="pins" type="pinTracingListType"/>
+    </xs:choice>
   </xs:sequence>
 </xs:complexType>
 <xs:complexType name="gpioTracingPinConfType">
@@ -362,6 +365,10 @@
   </xs:restriction>
 </xs:simpleType>
 
+<xs:simpleType name="pinTracingListType">
+  <xs:list itemType="pinTracingType"/>
+</xs:simpleType>
+
 <!-- Type definition for actuation enabled GPIOs -->
 <xs:simpleType name="pinActType">
   <xs:restriction base="xs:string">