Index: trunk/ippTools/src/difftoolConfig.c
===================================================================
--- trunk/ippTools/src/difftoolConfig.c	(revision 23688)
+++ trunk/ippTools/src/difftoolConfig.c	(revision 23740)
@@ -174,4 +174,5 @@
     psMetadataAddStr(definewarpwarpArgs, PS_LIST_TAIL, "-obs_mode", 0, "search by observation mode", NULL);
     psMetadataAddF32(definewarpwarpArgs, PS_LIST_TAIL, "-timediff", 0, "limit time difference between input and template", NAN);
+    psMetadataAddBool(definewarpwarpArgs, PS_LIST_TAIL, "-backwards", 0, "Template comes after input?", false);
     psMetadataAddF32(definewarpwarpArgs, PS_LIST_TAIL, "-rotdiff", 0, "limit rotator difference between input and template", NAN);
     psMetadataAddStr(definewarpwarpArgs, PS_LIST_TAIL, "-input_label", 0, "search by warp label for input", NULL);