diff --git a/etc/caseDicts/postProcessing/graphs/singleGraph b/etc/caseDicts/postProcessing/graphs/singleGraph
index dd04e682b9cf95e888304afa55e3dea49a63f414..76389e68816c72d8e87be4cffd21e7228237154a 100644
--- a/etc/caseDicts/postProcessing/graphs/singleGraph
+++ b/etc/caseDicts/postProcessing/graphs/singleGraph
@@ -15,8 +15,12 @@ start   (0 1e-06 0);
 end     (1 1e-06 0);
 fields  (U p);
 
+// Sampling and I/O settings
 #includeEtc "caseDicts/postProcessing/graphs/sampleDict.cfg"
 
+// Override settings here, e.g.
+// setConfig { type midPoint; }
+
 // Must be last entry
 #includeEtc "caseDicts/postProcessing/graphs/graph.cfg"