Index: branches/eam_branches/ipp-20191011/ippconfig/recipes/ppSim.config
===================================================================
--- branches/eam_branches/ipp-20191011/ippconfig/recipes/ppSim.config	(revision 40939)
+++ branches/eam_branches/ipp-20191011/ippconfig/recipes/ppSim.config	(revision 40940)
@@ -54,4 +54,10 @@
 STARS.DENSITY	F32    100.0		# Stellar density (per square degree) at the brightest magnitude
 STARS.SIGMA.LIM F32      1.0            # significance of faintest sources
+
+STARS.CLUSTER         BOOL    F         # do not insert a cluster by default
+STARS.CLUSTER.DENSITY F32 10000         # central density (per square degree)
+STARS.CLUSTER.SIGMA   F32    30         # cluster spatial scale (pixels)
+STARS.CLUSTER.XCENTER F32  500         # center of cluster
+STARS.CLUSTER.YCENTER F32  500         # center of cluster
 
 STARS.FLAT.LUM  BOOL    FALSE           # use a (non-physical) constant number of stars per mag bin?