diff --git a/doc/Diagram1.dia b/doc/Diagram1.dia
index 057a648..b15e5f4 100644
--- a/doc/Diagram1.dia
+++ b/doc/Diagram1.dia
@@ -9940,7 +9940,7 @@
         <dia:point val="23.3136,98.3122"/>
       </dia:attribute>
       <dia:attribute name="obj_bb">
-        <dia:rectangle val="23.0346,98.2612;23.5581,99.749"/>
+        <dia:rectangle val="23.0346,98.2613;23.5581,99.749"/>
       </dia:attribute>
       <dia:attribute name="conn_endpoints">
         <dia:point val="23.3136,98.3122"/>
@@ -10158,5 +10158,46 @@
         <dia:enum val="3"/>
       </dia:attribute>
     </dia:object>
+    <dia:object type="Standard - Text" version="1" id="O314">
+      <dia:attribute name="obj_pos">
+        <dia:point val="33.9,51.689"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="33.9,51.0754;49.5046,58.2763"/>
+      </dia:attribute>
+      <dia:attribute name="text">
+        <dia:composite type="text">
+          <dia:attribute name="string">
+            <dia:string>#Any input to the 'AvailCh.trig' input results
+in the next available channel number
+being transmitted from 'AvailCh.ch' which
+in turn causes the parameter routers to toggle
+to the inactive channel.  This means that the
+'AvailCh.trig' should PRECEDE any measurement
+or parameter outputs otherwise they will be
+routed to the fade-out channel rather than the
+fade-in channel.#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="font">
+            <dia:font family="sans" style="0" name="Helvetica"/>
+          </dia:attribute>
+          <dia:attribute name="height">
+            <dia:real val="0.80000000000000004"/>
+          </dia:attribute>
+          <dia:attribute name="pos">
+            <dia:point val="33.9,51.689"/>
+          </dia:attribute>
+          <dia:attribute name="color">
+            <dia:color val="#000000"/>
+          </dia:attribute>
+          <dia:attribute name="alignment">
+            <dia:enum val="0"/>
+          </dia:attribute>
+        </dia:composite>
+      </dia:attribute>
+      <dia:attribute name="valign">
+        <dia:enum val="3"/>
+      </dia:attribute>
+    </dia:object>
   </dia:layer>
 </dia:diagram>