Index: trunk/ippconfig/recipes/reductionClasses.mdc
===================================================================
--- trunk/ippconfig/recipes/reductionClasses.mdc	(revision 29986)
+++ trunk/ippconfig/recipes/reductionClasses.mdc	(revision 30636)
@@ -192,4 +192,26 @@
 	JPEG_BIN1	STR	PPIMAGE_J1
 	JPEG_BIN2	STR	PPIMAGE_J2
+END
+
+# reduction classes for different stacks
+# regular stacks
+NIGHTLY_STACK         METADATA
+      STACK_PPSTACK   STR      STACK_NIGHTLY
+      STACK_PPSUB     STR      STACK
+      STACK_PSPHOT    STR      STACK
+END
+
+# deep stacks
+DEEP_STACK            METADATA
+      STACK_PPSTACK   STR      STACK_DEEP
+      STACK_PPSUB     STR      STACK
+      STACK_PSPHOT    STR      STACK
+END
+
+# three pi stacks
+THREEPI_STACK         METADATA
+      STACK_PPSTACK   STR      STACK_THREEPI
+      STACK_PPSUB     STR      STACK
+      STACK_PSPHOT    STR      STACK
 END