diff --git a/geant4/LEMuSR/run/vis.mac b/geant4/LEMuSR/run/vis.mac
index 992aed1..ed77e46 100644
--- a/geant4/LEMuSR/run/vis.mac
+++ b/geant4/LEMuSR/run/vis.mac
@@ -7,6 +7,11 @@
 #*/vis/open OGLIX 600x600-0+0
 #*/vis/open DAWNFILE
 
+# To calculate volumes and masses uncomment the next two lines
+#*/vis/open ATree 
+#*/vis/ASCIITree/verbose 4
+
+
 # Create a new empty scene and attach it to handler
 /vis/scene/create