Index: trunk/ippTools/src/difftool.c
===================================================================
--- trunk/ippTools/src/difftool.c	(revision 26908)
+++ trunk/ippTools/src/difftool.c	(revision 26909)
@@ -717,4 +717,5 @@
     PXOPT_COPY_S64(config->args, where,  "-magicked", "diffSkyfile.magicked", "==");
     pxAddLabelSearchArgs (config, where, "-label", "diffRun.label", "LIKE");
+    pxAddLabelSearchArgs (config, where, "-data_group", "diffRun.data_group", "LIKE");
 
     PXOPT_LOOKUP_BOOL(template, config->args, "-template", false);
Index: trunk/ippTools/src/difftoolConfig.c
===================================================================
--- trunk/ippTools/src/difftoolConfig.c	(revision 26908)
+++ trunk/ippTools/src/difftoolConfig.c	(revision 26909)
@@ -144,4 +144,5 @@
     psMetadataAddStr(diffskyfileArgs, PS_LIST_TAIL,  "-filter", 0,           "search for filter", NULL);
     psMetadataAddStr(diffskyfileArgs,  PS_LIST_TAIL, "-label",  PS_META_DUPLICATE_OK, "search by diffRun label (LIKE comparison)", NULL);
+    psMetadataAddStr(diffskyfileArgs,  PS_LIST_TAIL, "-data_group",  PS_META_DUPLICATE_OK, "search by diffRun data_group (LIKE comparison)", NULL);
     psMetadataAddS16(diffskyfileArgs, PS_LIST_TAIL,  "-fault",  0,           "search by fault code", 0);
     pxmagicAddArguments(diffskyfileArgs);