Index: trunk/ippconfig/recipes/reductionClasses.mdc
===================================================================
--- trunk/ippconfig/recipes/reductionClasses.mdc	(revision 41447)
+++ trunk/ippconfig/recipes/reductionClasses.mdc	(revision 41449)
@@ -368,4 +368,17 @@
 END
 
+## YSE lensing stack and SSdiff reduction class 
+YSE_LENS         METADATA
+      DIFF_PPSUB      STR     STACKSTACK
+      DIFF_PSPHOT     STR     YSE_LENS_DIFF
+      JPEG_BIN1       STR     PPIMAGE_J1
+      JPEG_BIN2       STR     PPIMAGE_J2
+      STACK_PPSTACK   STR     STACK_NIGHTLY_1DG
+      STACK_PPSUB     STR     STACK_1DG
+      STACK_PSPHOT    STR     STACK
+      STACKPHOT_PSPHOT         STR     STACKPHOT
+      STACKPHOT_SINGLE_PSPHOT  STR     STACKPHOT_SINGLE
+      STATICSKY_CALIBRATION    STR     STATICSKY_NIGHTCAL
+END
 
 APTEST_V1		METADATA