Index: trunk/ppMerge/src/ppMergeArguments.c
===================================================================
--- trunk/ppMerge/src/ppMergeArguments.c	(revision 24115)
+++ trunk/ppMerge/src/ppMergeArguments.c	(revision 24119)
@@ -156,4 +156,5 @@
     psMetadataAddS32(arguments, PS_LIST_TAIL, "-nkeep",    0, "Minimum number of pixels in stack to keep", 0);
     psMetadataAddBool(arguments, PS_LIST_TAIL, "-variances", 0, "Use image variances in combination?", false);
+    psMetadataAddBool(arguments, PS_LIST_TAIL, "-use-masks", 0, "Use image masks in combination?", false);
 
     // XXX EAM : not clear this should be allowed on the command line.
@@ -179,5 +180,5 @@
 
     /** Mask construction parameters */
-    psMetadataAddF32(arguments, PS_LIST_TAIL, "-mask-suspect",  0, "Threshold for suspect pixels (sigma)", NAN);
+    psMetadataAddF32(arguments, PS_LIST_TAIL, "-mask-suspect-sigma",  0, "Threshold for suspect pixels (sigma)", NAN);
     psMetadataAddF32(arguments, PS_LIST_TAIL, "-mask-bad",      0, "Threshold for bad pixels (sigma)", NAN);
     psMetadataAddStr(arguments, PS_LIST_TAIL, "-mask-mode",     0, "Mode to identify bad pixels", NULL);
@@ -308,4 +309,5 @@
     VALUE_ARG_RECIPE_INT("-nkeep",      "NKEEP",    S32, 0);
     VALUE_ARG_RECIPE_BOOL("-variances", "VARIANCES");
+    VALUE_ARG_RECIPE_BOOL("-use-masks", "INPUTS.MASKS.USE");
 
     // XXX we do not supply this on the command line
@@ -332,5 +334,5 @@
     VALUE_ARG_RECIPE_FLOAT("-mask-suspect-min",   "MASK.SUSPECT.MIN", F32);
     VALUE_ARG_RECIPE_FLOAT("-mask-suspect-max",   "MASK.SUSPECT.MAX", F32);
-    VALUE_ARG_RECIPE_STR("-mask-suspect", "MASK.SUSPECT.MODE");
+    VALUE_ARG_RECIPE_STR("-mask-mode", "MASK.SUSPECT.MODE");
     VALUE_ARG_RECIPE_FLOAT("-mask-bad",     "MASK.BAD",     F32);
     VALUE_ARG_RECIPE_INT("-mask-grow",      "MASK.GROW",    S32, 0);