Index: trunk/ippTools/src/stacktool.c
===================================================================
--- trunk/ippTools/src/stacktool.c	(revision 31528)
+++ trunk/ippTools/src/stacktool.c	(revision 31529)
@@ -246,5 +246,6 @@
     PXOPT_COPY_STR(config->args,  where, "-select_data_group",         "warpRun.data_group", "==");
     pxAddLabelSearchArgs (config, where, "-select_label",              "warpRun.label", "LIKE"); // define using warp label
-
+    pxAddLabelSearchArgs (config, where, "-warp_id",                   "warpRun.warp_id", "==");
+    
     // these are used to build the HAVING restriction
     PXOPT_COPY_S32(config->args, having, "-min_num", "num_warp", ">=");
Index: trunk/ippTools/src/stacktoolConfig.c
===================================================================
--- trunk/ippTools/src/stacktoolConfig.c	(revision 31528)
+++ trunk/ippTools/src/stacktoolConfig.c	(revision 31529)
@@ -91,4 +91,5 @@
     psMetadataAddF64(definebyqueryArgs, PS_LIST_TAIL, "-select_zpt_obs_max", 0, "define max zero point", NAN);
     psMetadataAddF64(definebyqueryArgs, PS_LIST_TAIL, "-select_astrom", 0, "define max astrometry rms", NAN);
+    psMetadataAddS64(definebyqueryArgs, PS_LIST_TAIL, "-warp_id", PS_META_DUPLICATE_OK, "include this warp ID (multiple OK)", 0);
     psMetadataAddS32(definebyqueryArgs, PS_LIST_TAIL, "-random", 0, "use this number of random elements", 0);
     psMetadataAddS32(definebyqueryArgs, PS_LIST_TAIL, "-min_num", 0, "minimum number of inputs", 0);