diff --git a/elements/neuron/presynapse.md b/elements/neuron/presynapse.md
index 4a3e2e6..cc4130c 100644
--- a/elements/neuron/presynapse.md
+++ b/elements/neuron/presynapse.md
@@ -83,7 +83,7 @@ PRESYNAPSE
   void: INSTANTIATE [ container: ADJUST, scope: !DAY ] // Tuning
   void: INSTANTIATE [ container: DEVELOP, scope: !NIGHT ]
 
-  // Expansion
+  // ########################## Expansion ##########################
 
   _@pre_vgcc: INSTANTIATE [ tub: EXPAND [ comprehension: PRE_VGCC ], full: 10x, active: 5x, empty: 2x ] // PRE_VGCC, il tub  _@pre_vgcc serve al tuning