Index: doc/user/06_feature/cam/index.html
===================================================================
--- doc/user/06_feature/cam/index.html	(revision 37321)
+++ doc/user/06_feature/cam/index.html	(revision 37322)
@@ -42,6 +42,7 @@
 			<li> okempty: shorthand that enables both okempty-group and okempty-content
 			<li> flip_x: set conf node editor/view/flip_x (x coords are mirrored)
 			<li> flip_y: set conf node editor/view/flip_y (y coords are mirrored)
+			<li> force_nonempty: export even if groups i empty and the exporter would normally not export empty groups
 		</ul>
 	<li> layergrp: one or more layer group addresses separated by comma (syntax is documented in <a href="../../09_appendix/layer_addr.html">layer addressing appendix.</a>)
 </ul>